David Milam, Magy Seif El-Nasr. Analysis of level design 'push & pull' within 21 games. In Ian Horswill, Yusuf Pisan, editors, International Conference on the Foundations of Digital Games, FDG '10, Pacific Grove, CA, USA, June 19-21, 2010. pages 139-146, ACM, 2010. [doi]
Abstract is missing.