1. Guerrilla, Killzone Home. (January retrieved 2014).
2. Search-based procedural content generation;Togelius,2010
3. Procedural urban modeling in practice;Watson;IEEE Comput. Graphics Appl.,2008
4. Vintage Games: An Insider Look at the History of Grand Theft Auto, Super Mario, and the Most Influential Games of All Time;Loguidice,2009
5. Rogue 1984 – The Dos Game, the History, the Science. (March retrieved 2014).