Changes
From DoomWiki.org
→External links
== External links ==
[http://www.doomworld.com/10years/ports/ports01_1.php Doomworld - 10 years of Doom] - some history of the Doom source release.
[http://www.3ddownloads.com/showfile.php3?file_id=7430 Original Doom Source Code] - The source code as [[id Software]] released it.
[[Category:Doom_engine]]