A very special thanks is due to the following people and groups. Note: as hard as we've tried, it is impossible to perfectly maintain this file. If you are aware of someone who you think should be included here, PLEASE let me know. Projects like this are made possible only by the help and hard work of others. I want to properly credit everyone who has contributed to this project. A1 Free Sounds http://www.a1freesoundeffects.com Granted permission for the flightgear project to use some of the sound effects from their site. Syd Adams: Added clipping to 2d instruments. Added volume control to ATC-chatter. Created and maintain: DHC2, B1900D, Aerostar 700, S76C+ helicopter, Cessna Citation Bravo & CitationX, A6M2 'Zero'. Assisted with Cessna Citation II with Curt and 777-200 with Justin Smithies. Gilberto Agostinho Contributed work to the default scenery (new textures and better materials definitions, mostly committed by Thorsten into FGDATA. Contributed to the highly detailed c172p (textures, sounds and programming). Mark Akermann Redone sun code. The sun now consists of three textures with individual colors which are calculated based on the effect of light scattering. This is accomplished by using various environmental data and by calculating the distance the light travels through the atmosphere. Raul Alonzo Mr. Alonzo is the author of Ssystem and provided his kind permission for using the moon texture. I also used parts of his code as a template when adding the texture. Ssystem Homepage can be found at: http://www1.las.es/~amil/ssystem Michele America Contributed to the HUD code. Emmanuel Baranger <> Many, many very nice aircraft models. Andrei Barbu "T"Eval" teval@myrealbox.com Designed and implemented the current version of the FlightGear website. Michael Basler Author of the Getting Started guide. Paul Beardsley The 1903 Wright Flyer was inspired by a model contributed by Paul Beardsley. Very little of the original model remains, but without Paul's excellent work we might not have our own 1903 Flyer. Model was reworked and retextured by Jim Wilson. Jon S. Berndt Chief architect of JSBSim, the default flight dynamics model (FDM) for FlightGear. Jon's professional work has involved simulation and prototyping for vehicles ranging from the F-16 to his current work on the space shuttle and future manned launch vehicles. Since 1998 Jon has been working on creating JSBSim together with co-author Tony Peden. JSBSim is an object-oriented, multi-platform aerospace vehicle simulator that can be integrated with broader flight simulation programs (since it provides no visual model), or run in a standalone mode for batch runs. For more information, see the JSBSim home page at: http://www.jsbsim.org Paul Bleisch Paul redid the "debug" system so that it would be much more flexible, so it could be easily disabled for production system, and so that messages for certain subsystems could be selectively enabled. Also contributed a first stab at a config file/command line parsing system. Matthias Boerner <> Coorganizer of the FlightGear booth at the annual LinuxTag event in Germany. Thorsten Brehm Thorsten provided the TCAS system and fixed an uncountable number of bugs, closed memory leaks and helps creating new releases. Alexis Bory Very nice models, including the F14-B. Jim Brennan Provided a big chunk of online space to store USA scenery for Flight Gear. Bernie Bright Many C++ style, usage, and implementation improvements. STL portability, tons o' stuff. :-) Threading support and threaded tile pager. Francesco Brisa <> Scenery models and ground networks for Italian airports. Scripts for automated source downloads and builds. Bernhard H. Buckel Contributed the README.Linux Co-Author of the "Getting Started Manual" Gene Buckle Gene has done a lot of work getting FG to compile with the MSVC++ compiler. Also, he has pushed, proded, and bugged me endlessly to do my stuff right. (I mean that in a good way, because sometimes when the little nudge in the right direction isn't working, I need a good hard shove.) :-) Ralph Carmichael Thanks to Ralph for his support of the FlightGear project. At Public Domain Aeronautical Software you will find the PDAS CD-ROM for sale, packed with great programs of use to aeronautical engineers. At this web site there are also some sample downloads to show what is on the CD. http://www.pdas.com Didier Chauveau Provided some initial code to parse the 30 arcsec DEM files found at: http://edcwww.cr.usgs.gov/landdaac/gtopo30/gtopo30.html John Check Maintains the base package repository Joystick howto Panel howto New instrument panel configurations Bertrand Coconnier Contributed several bugfixes and improvements for the integration of the JSBSim flight dynamics model Dave Cornish Created our new, super cool, runway textures. Created some of our cloud textures. Oliver Delise FAQ Maintainer, Documentation, Public Relations. Author of (the now depreciated) networking / multi-user support. Founder of the FlightGear MultiPilot Project : http://www.isis.de/members/~odelise/progs/flightgear John Denker Contributed bugfixes and improvements to the navigation and ATIS code. Martin Eschen <> Helped enourmously toward finishing the full scale traffic demo at EHAM. Torsten Dreyer Contributed the very nice Piper Seneca, closely modelled after the real thing. Also added many other nice aircraft (such as the ogeL, also closely modelled after the real thing), buildings, etc. Creator of fgpanel. Code maintainer of weather, environment, autopilot and many other core systems. Dave Eberly Contributed some sphere interpolation code used by Christian Mayer's weather data base system. Go to Dave's web site. He has a ton of really useful looking code available there. http://www.magic-software.com Jean-Francois Doue Vector 2D, 3D, 4D and Matrix 3D and 4D inlined C++ classes. (Based on Graphics Gems IV ed. Paul S. Heckbert) http://www.animats.com/simpleppp/ftp/public_html/topics/developers.html European Space Agency (ESA) for the space mission Gaia Milky Way texture made from the public domain data provided by the Gaia Data Processing and Analysis Consortium (ESA/Gaia/DPAC) https://www.cosmos.esa.int/web/gaia-users/archive https://github.com/eatdust/gaialaxy (Chris Ringeval) Francine Evans Wrote the @#$@#$@% GPL'd tri-striper we use and "love". :-) http://www.cs.sunysb.edu/~evans/stripe.html Oscar Everitt Created single engine piston engine sounds as part of an F4U package for FS98. They are pretty cool and Oscar was happy to contribute them to our little project. Detlef Faber Many WWII era aircraft. Leidson Campos A. Ferreira Rewrote the Jpeg screen httpd streaming (--jpg-httpd option) Olaf Flebbe Improved the build system for Windows and provided pre-built dependencies. Bruce Finney MSVC5 compatibility. Thomas Forster <> Updates to the AI system, including the Dykstra route finding algorithm, adding a performance class, and many code clean-ups. Co-organizer of the annual LinuxTag booth. Melchior Franz Reworked the joystick driver detection code, added high/low support for "hats". Nasal-ified the Saitek Cyborg Gold 3D (USB) joystick which now forms the basis of a lot of programmable joysticks. Ruthlessly hunted down memory leaks in FlightGear, SimGear, and JSBSim. Maintains the only fully working helicopter model in FlightGear (Bolkow 105). Made the GUI code fully XML configurable and added support for themes, reworked property browser, route manager and several other dialogs. Wrote Dynamic Cockpit View, Fly-By view and lots of other Nasal code. Implemented Nasal "listeners". Jean-loup Gailly and Mark Adler Authors of the zlib library. Used for on-the-fly compression and decompression routines. http://www.cdrom.com/pub/infozip/zlib/ Thomas Gellekum Changes and updates for compiling on FreeBSD Ralf Gerlich <> Technical Genius behind the Custom Scenery Project. Current maintainer of TaxiDraw Anders Gidenstam <> Added support for lighter than air vehicles to JSBSim. Contributed simulation of wildfires and a basic system for dual control of an aircraft over the multiplayer network. Author of several airships and one aircraft. Neetha Girish Contributed the xml configurable HUD changes. Jeff Goeke-Smith Contributed our first autopilot. (Heading Hold) Better autoconf check for external timezone/daylight variables in #include Michael I. Gold Patiently answered my endless "newbie" OpenGL questions. His effort alone has made me a great SGI fan. Habibie RedHat package building changes for SimGear. Csaba Hal�sz <> Many bugfixes and code checking. Ampere Hardraade <> Many detailed 3D models of aircraft, including the MD11, and several Airbuses. Brett Harrison <> Ground networks for various airports. Most of the liveries for the new C172p by HHS. AI Repaints for several 737's and C172's Dave Haskell Original exterior textures for the Cessna 310 U-3A model. Only a few minor modifications were made. Mike Hill Contributed 3d aircraft models to our project. http://www.flightsimnetwork.com/mikehill/home.htm Erik Hofman Major overhaul and parameterization of the sound module, to allow aircraft-specific sound configuration at runtime. Did a lot of code improvements and bug-hunting. Creator of most of the ground textures. Maintainer of the F-15, F-16, F-104, T-37, PC-7, Fokker 50 and 100 models. Keeps the Irix port current. Localization support. Charlie Hotchkiss Worked on improving and enhancing the HUD code. Lots of code style tips and code tweaks ... Bruce Jackson of NASA Developed the LaRCsim code under funding by NASA which we use to provide the flight model. Bruce has patiently answered my many, many questions. http://dcb.larc.nasa.gov/www/DCBStaff/ebj/ebj.html Ron Jensen Contributed to the piston engine code in JSBSim. Maik Justus Developed YASim's helicopter/rotor logic. Implemented aerotowing, water plane and anchor support for YASim, and made its gear aware of the surface material. Wrote the Bo105 helicopter FDM configuration file. Developed gear/ground interactions and added aerotow/winch support to the YASim FDM Ove Kaaven Debian packaging of SimGear/FlightGear Richard Kaszeta Contributed screen buffer to ppm screen shot routine. Rich has also helped in the early development of the Flight Gear "altitude hold autopilot module" by teaching Curt Olson the basics of Control Theory and helping him code and debug early versions. Curt's "Boss" Bob Hain also contributed . Further details available at: http://www.menet.umn.edu/~curt/fgfs/Docs/Autopilot/AltitudeHold/AltitudeHold.html Rich's Homepage: http://www.menet.umn.edu/~kaszeta Vassilii Khachaturov Support of navaids as autopilot waypoints. Switching the tower view to a different tower at any time. Various code, GUI, and documentation fixes and updates. Tom Knienieder Ported Steve's Audio library first to OpenBSD and IRIX and after that also to Win32 Reto Koradi Helped me get on track with setting up fog effects. http://www.mol.biol.ethz.ch/wuthrich/people/kor Bob Kuehne Redid the Makefile system so it is simpler and more robust. Chris Lampard Original exterior geometry for the Cessna 310 U-3A model. Several modifications made but most of the exterior is as is converted from Chris's original. The interior cockpit was added by Jim Wilson. David Luff Contributed heavily to the IO360 piston engine model. Created the ATC intelligent traffic subsystem. Creator of TaxiDraw, a program to modify the taxiway layout for FlightGear. Lewis Magruder Original A-4 Blue Angels exterior model and textures. Lewis's work is pretty much as converted from the original. The interior cockpit was added by Jim Wilson. Christian Mayer Working on a multi-lingual conversion tools for fgfs as a demonstration of technology ;-) Contributed code to read msfs formated texture files. Working on a completely new weather subsystem. Working on a balloon simulator. David Megginson Contributed a patch to allow mouse input to control the yoke. Contributed financially towards hard drive space for use by the flight gear project. Updates to README.running. Working on getting fgfs and ssg to work without textures. Also added the new 2D panel and the save/load support. Reorganization of the GUI to make it XML configurable. Property manager Generalized input module 3D model animation module initial take of sound-effects module Random ground cover objects Vacuum and pitot systems. Eric Mitchell Contributed some topnotch scenery textures. His textures were all original creations. Cameron Moore Reigning list admin. Provided man pages. Self-proclaimed code janitor. Has been maintaining FAQ for some years. Tim Moore <> Many innovations to the OpenSceneGraph based graphics system. Counseling of other developers toward learning OSG Maintaing a GIT repository containing a mirror of FlightGear's source code, speficially for bugfix releases. Anders Morken Maintained the European mirror of the FG web pages. Unfortunately this mirror has been taken down due to reglementation changes including an enforcement to 10 MB space per subscriber limit which was way too small for the evergrowing FGFS Project's Files. He'd be happy to maintain a new one if he could find a place to put it, so if you have an idea, contact him! Alan Murta http://www.cs.man.ac.uk/aig/staff/alan/software/ Created the Generic Polygon Clipping library Phil Nelson Author of GNU dbm. gdbm is a set of database routines that use extendible hashing and works similar to the standard UNIX dbm routines. Tatsuhiro Nishioka Maintainer of the Mac port. Contributed some very nice Japanese aircraft models. Alexei Novikov Created European Scenery Contributed a script to turn fgfs scenery into beautifully rendered 2d maps. Contributed a first draft of a scenery creation howto. Curt Olson Curt is responsible for overall project and source code management. He has his hands in many of the areas, but is primarily responsible for the scenery subsystem, as well as much of the infrastructure in the sim. Handles most parts of the regular scenery rebuild, including lots of improvements of the vertex calculation code. Added the nw PID based, configurable autopilot code. Added the Electrical system. Added Runway lighting. Brian Paul His TR Library: http://www.mesa3d.org/brianp/TR.html And also Mesa of course: http://www.mesa3d.org Tony Peden Contributions on the flight model front, including a LaRCsim based Cessna 172. JSBsim: the initial conditions code, a more complete standard atmosphere model, and other bugfixes/additions. Robin Peel Maintains the ever growing worldwide airport, runway, and navigation aid database for the Flight Gear project as well as for X-Plane. Alex Perry Contributed code to more accurately model VSI, DG, Altitude. Contributed to the Install and Getting Started manual. Pigeon <> Developed the multiplayer network infrastructure. Friedemann Reinhard Contributed beginnings of a textured instrument panel. Frederic Bouvier Added French language support Keeps FlightGear MSVC compatible. Did a number of code changes to improve the animation code. Added a number of animations that improves the visual system quite a lot. For a long time built the FlightGear binary windows distributions. Did a nice job populating the San Francisco bay area by adding a lot of static scenery. Maintainer of fgrun, the defacto launcher on windows and many other platforms. Author of fgsd, a standalone scenery designer. Petter Reinholdtsen Incorporated the Gnu automake/autoconf system (with libtool). This should streamline and standardize the build process for all Unix-like platforms. It should have little effect on IDE type environments since the don't use the Unix make system. William Riley Contributed code to add "brakes". Patch to support a first joystick with more than two axes. World scenery based on vmap0 data. Gijs de Rooy <> Contributed some very nice building models, including a very detailed layout of the Amsterdam airport terminals, and many downtown buildings. Redid the Boeing 747-400 3D model. Greatly contributed to the FlightGear community as a very active first aid responder on the official Flightgear forum, as a forum and wiki admin, and as the editor of the monthly FlightGear newsletter. Gerard Robin <> Many nice Aircraft models Andy Ross Contributed a new configurable FDM, "YASim", based on geometry information rather than aerodynamic coefficients. Added support for placing 2D panel objects in 3D space. Modified the HUD code to make it more accurate and added 3D support. Modified the UI code to allow a far more flexible grouping system. Added the Nasal scripting language and added FlightGear integration. Brian Schack <> Current maintainer of Atlas, the moving map program for FlightGear Paul Schlyter Mr. Schlyter provided Durk Talsma with all the information he needed to write the astro code. Mr. S. is also willing to answer astro-related questions whenever one needs to. http://welcome.to/pausch Christian Schmitt <> Detailed Frankfurt airport buildings. Contributions to the custom scenery project. Chris Schoeneman Contributed some 3d sound playing code for Irix, Win32, and Linux It is unclear if this code will be used directly, but it certainly will have an influence on the development of our own audio library. Phil Schubert Contributed various textures and engine modelling. http://www.zedley.com/Philip/index.htm Heiko Schulz <> Contributed AI traffic for EDDF EDDF Night lights ground networks Jonathan R Shewchuk Author of the Triangle program. Triangle is used to calculate the Delauney triangulation of our irregular terrain. Gordan Sikic Contributed a cherokee flight model for LaRCsim. Currently is not working and needs to be debugged. Use configure --with-flight-model=cherokee to build the cherokee instead of the navion. Michael Smith Contributed cockpit graphics, 3d models, logos, and other images. Project Bonanza - http://members.xoom.com/ConceptSim/index.html Martin Spott Contributed to the installation / user guide. Coorganizer of the FlightGear booth at the annual LinuxTag event in Germany. Managed the "World Scenery" releases. Maintained world's biggest repository and toolchain for free and open map and scenery data at http://mapserver.flightgear.org/ Brought GIS to FlightGear Jon Stockill <> Maintainer of the object database. Martin Dressler Created some outstanding panel instrumentation textures for use in full-screen mode. U.S. Geological Survey Provided geographic data used by this project http://edcwww.cr.usgs.gov/doc/edchome/ndcdb/ndcdb.html Durk Talsma Accurate Sun, Moon, and Planets. Sun changes color based on position in sky. Moon has correct phase and blends well into the sky. Planets are correctly positioned and have proper magnitude. Help with time functions, gui, and other misc stuff. Added the AirTraffic module for scheduled AI airliners and other aircraft. 2D Cloud layers (nifty). http://people.a2000.nl/dtals Gabor Toth <> Contributed some Livery repaints for AI Aircraft Contributed many ideas leading towards the Traffic Manager II format Runs FGTracker, an online flight tracking service for FlightGear James Turner <> Many code cleanups of the internal structure of the airport database, runway parsing, route management. Is currently working on adding flightmanagement support. UIUC - Department of Aeronautical and Astronautical Engineering Contributed modifications to LaRCsim to allow loading of aircraft parameters from a file. These modifications were made as part of an icing research project. Did the coding and made it all work: Jeff Scott Bipin Sehgal Michael Selig Helped support the effort Jay Thomas Eunice Lee Elizabeth Rendon Sudhi Uppuluri Mark Vallevand Contributed some METAR parsing code. Contributed some win32 screen printing routines. Gary R. Van Sickle Contributed some initial GameGLUT support and other fixes. Has done some interesting preliminary work on a binary file format http://www.woodsoup.org/projs/ORKiD/fgfs.htm Has set up a 'Cygwin Tips' site that has been very helpful to many people in getting a Cygwin Unix-on-Windows build environment set up so they can build FG effectively. http://www.woodsoup.org/projs/ORKiD/cygwin.htm Norman Vine Provided more than uncountable URL's to the "FlightGear Community". Many performance optimizations throughout the code. Many contributions and much advice for the scenery generation section. Lots of windoze related contributions. Contributed wgs84 distance and course routines. Contributed a great circle route autopilot mode based on wgs84 routines. Many other GUI, HUD, and autopilot contributions. Contributed a patch to allow mouse input to control view direction. Ultra hires tiled screen dumps. Contributed the initial 'goto airport' and 'reset' functions Contributed the initial http image server code Did the build instructions for OpenAL (and SDL) for Cygwin. Roland Voegtli Great photorealistic textures. Founder of European Scenery Project for X-Plane http://www.g-point.com/xpcity/esp/ Carmelo Volpe Contributed some work to porting Flight Gear to the Metro Works development environment (PC/Mac) Darrell Walisser Contributed a large number of MacOS changes and has somehow managed to get a pile of code written by a bunch of people who've never seen a Mac to compile and run on said platform. Provides MacOS-specific info in the docs. Davud Culp Changed the layout of the conbtrolls section and added a great number of extra controls which will prove to be usefull no and for the future. Contributed a number of aircraft configuration files, including a T-38 and Boeing 737. Implemented the AIModels subsystem (originally based on the ATC traffic code) and extended it to support ships, aircraft, ballistic objects, thunder-storms, and thermals. Added a lot of updated to JSBSIm, esp. for the turbine section. Ed Williams Contributed magnetic variation code (impliments Nima WMM 2000) We've also borrowed from Ed's wonderful aviation formulary at various times as well. http://www.best.com/~williams/index.html Jim Wilson Wrote a major overhaul of the viewer code to make it more flexible and modular. Contributed many small fixes and bug reports. Contributed the the pui property browser. Contributed to the autopilot. Created several excellent 3D aircraft models, including the p-51, Wright Flyer and the Boeing 747. Jean-Claude Wippler Author of MetaKit - a portable, embeddible database with a portable data file format. This software is not GPL'd but the author is kindly allowing us to bundle MetaKit with our code. MetaKit has a liberal X/MIT-style license. Please see the following URL for more info: http://www.equi4.com/metakit Holger Wirtz <> Author of FGCom, a voice communication program intented for FlightGear multiplayer/ATC. John Wojnaroski Open Glass Cockpit project 3d clouds Marcus Zojer <> Contributed a B1B aircraft model. Lee Elliot Author of the YF-23, A-10, Ann225, B-52 and TSR-2 models. Did a lot of suggestions for better aircraft modelling, some of which resulted in code changes to accomplish them. Innis Cunningham Modelled the 737 and contributed to the T38. Vivian Meazza Added a number of excellent aircraft models including the Hawker Hunter and Seahawk. Provided realistic wind, gravity and drag calculations for AIBallistic models, as well as terrain intersections (impacts) of submodels. Added the Fresnel Lens Optical Landing System and AI code for AICarrier and AIShip, and implemented the TACAN navigation instrument David Culp Added the AI model and scenario code which allows non interactive models (like aircraft, ships, ballistic models, storms and thermals) to move around the scenery in a predefined way. Every model can have it's own special characteristics. The thermal model for instance is a non-visible model that creates an updraft around it's center. Mathias Fröhlich Implemented the groundcache code which made it possible for aircraft to follow the ground precisely and, as a result, made it possible to land on aircraft carriers. Modified YASim, JSBSim and LaRCsim to support the groundcache code. Reorganized the code to eliminate the viewer jitter for close by objects. Mathias is responsible for the transition to OSG and he added HLA support. Harald Johnsen Added a new 3D cloud implementation which also works on big-endian machines. This code allows for clouds of any types and any shapes (and even deformation while moving). Implemented volumetric shadowing. Roy Vegard Ovesen Implemented the KAP140 autopilot. Added a generic, XML configurable, autopilot framework. Added an Altitude encoder. Added a transponder. Made the instruments code much more configurable, it is now possible to only include instruments that are actually present. Added several high level, configurable filter implementations for use by autopilot designers. Stuart Buchanan Substantial additions to the Getting Started Manual Enhancements to the Cessna-310 3d model. Added a generic yoke model, a generic throttle quadrant model and a generic pedal set model. OSG based three 3D clouds. Forum moderator. Stefan Seifert Added the save-on-exit option to save the user preferences at program exit. Thorsten Renk Created the local weather system with Thermals, Ridge lift and Wave lift which creates an accurate meteorological simulation. Added the Atmospheric light scattering (ALS) framework (http://wiki.flightgear.org/Atmospheric_light_scattering) Worked a quite a number of aircraft shaders like the interior shader, rain shader and exhaust flume shader Space Imaging, Inc http://www.spaceimaging.com/ Space Imaging has allowed us to use the images in their archive for commercial and non-commercial use, provided the original image can't be extracted from the textures. Airservices Australia Duncan McCreanor and Diarmuid Tyson created a multiplayer engine for FlightGear when putting together a demonstration to show the possibilities of using Flightgear as the basis for an Air Traffic SkyscraperPage.com http://skyscraperpage.com SkyscraperPage.com has allowed us to use their building diagrams to make textures and 3d models of their buildings. http://sky.aw.net.ua/ The owner of this site has kindly allowed us to use potographs from this site for cloud texturing. WoodSoup Project http://www.woodsoup.org [ FlightGear no longer uses woodsoup services, but we appreciate the support provided to our project during the time they hosted us. ] Provided computing resources and services so that the Flight Gear project could have real home. This includes, web services, ftp services, shell accounts, email lists, dns services, etc. Robert Allan Zeh Helped me tremendously in figuring out the Cygnus win32 compiler and how to link with .dll's. With out him the first runable win32 version of FG would have been impossible. The following individuals have contributed to the scenery object database: Martin Spott, Dave Martin, Thomas Foerster, Chris Metzler, Frederic Bouvier, Melchior Franz, Roberto Inzerillo, Erik Hofman, Mike Round, Innis Cunningham, David Megginson, Stuart Buchanan, Josh Babcock, Esa Hyytia, Mircea Lutic, Jens Thoms Toerring, Mark Akermann, Torsten Dreyer, Martin C. Doege, Alexis Bory, Sebastian Bechtold, Julien Pierru, Bertrand Augras, Gerard Robin, Jakub Skibinski, Morten Oesterlund Joergensen, Carsten Vogel, Dominique Lemesre, Daniel Leygnat, Bertrand Gilot, Morten Skyt Eriksen, Alex Bamesreiter, Oliver Predelli, Georg Vollnhals, and Paul Richter. For regional texturing, support by the following people and organization is gratefully acknowledged: - Instituto Brasileiro de Geografia e Estatistica (IBGE) for the satellite images of the Brazilian cerrado: http://downloads.ibge.gov.br/downloads_geociencias.htm - Maria Hsu for the image of a caatinga tree: https://www.flickr.com/photos/14323530@N05/2150992479/ - Maria Hsu for the image Caatinga - Sertão nordestino.jpg: https://commons.wikimedia.org/wiki/File:Caatinga_-_Sert%C3%A3o_nordestino.jpg - Otávio Nogueira for the image of a cerrado tree: https://www.flickr.com/photos/55953988@N00/3896942038 - Leandro Neumann Ciuffo for the image Cerrado sul-mato-grossense (5801201223).jpg: https://commons.wikimedia.org/wiki/File:Cerrado_sul-mato-grossense_%285801201223%29.jpg - Guilherme Jofili for the image Basta uma chuvinha e o sertao colore!: https://www.flickr.com/photos/gjofili/8220416529/ NOTE: ---- THIS DOCUMENT WAS INITIALLY WRITTEN BY: Curt L. Olson THE CONTENTS WERE RESEARCHED AND UPDATED MARCH, 8 2000: Oliver Delise Updated 2001-12-11 by David Megginson, david@megginson.com Updated 2003-04-17, Updated 2004-06-01, Updated 2005-04-02 by Erik Hofman, erik@ehofman.com Updated 2007-05-16 for 0.9.11 release Updates 2015-06-15 by Thorsten Renk