Book: Van verth, James and Lars Bishop. Essential Mathematics For Games and Interactive Applications: A Programmer's Guide. Morgan Kaufmann Publishers, 1999.

WWW: GameSpot's Trespasser Review by Elliott Chin

WWW: Improved Inverse Kinematics Methods by Hugo Elias

WWW: Metanet Software's Collision Detection and Response Tutorials by Raigan Burns and Mare Sheppard.

WWW: Official Havok SDK Webpage by Havok.com Inc.

WWW: PlanetQuake's MilkShape 3D Tutorial by Wayne Peters.

WWW: Valve Software's Webpage by Valve Software.

WWW: The Official FarCry The Game Website by CryTek Games.

WWW: The Pong-Story Website by David Winter.