O. Demetz, J. Weickert, A. Bruhn, and H. Zimmer. Proceedings of International Conference on Scale Space and Variational Methods in Computer Vision (SSVM 2011). Lecture Notes in Computer Science, 6667, Springer, (2012)
M. Höferlin, B. Höferlin, and D. Weiskopf. Proceedings of 3rd Workshop on Behaviour Monitoring and Interpretation, 541, CEUR Workshop Proceedings, (2009)