S. Laine, und T. Karras. Proceedings of the 2010 ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, Seite 55--63. New York, NY, USA, ACM, (2010)
M. Karim, Y. Yang, D. Messinger, und G. Ruhe. Proceedings of the 51st Hawaii International Conference on System Sciences, Waikoloa, Hawaii International Conference on System Sciences, (2018)