Jesse Schell: The Art of Game Design: A Book of Lenses. Morgan Kaufmann, Burlington, Massachusetts 2008, ISBN 978-0-12-369496-6, S.408–409 (Onlineansicht).
Stevie Giovanni & Kang Kang Yin: LocoTest: Deploying and Evaluating Physics-Based Locomotion on Multiple Simulation Platforms. In: Jan Allbeck & Petros Faloutsos (Hrsg.): Motion in Games: 4th International Conference, Mig 2011, Edinburgh, Kingdom, November 13-15, 2011, Proceedings. Springer, Heidelberg 2011, ISBN 978-3-642-25089-7, S.228 (Onlineansicht).
