M. Huber, S. Pabst, and W. Straßer. Proceedings of Computer Graphics International 2011 (Presented at CGI Workshop on VFX, Computer Animation and Stereo Movies), (2011)
T. Kubitza, N. Pohl, T. Dingler, and A. Schmidt. Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing (Ubicomp'13), ACM, (2013)