H. Bosch, D. Thom, G. Heinze, S. Wokusch, and T. Ertl. The 5th International Conference on Advances in Human-oriented and Personalized Mechanisms, Technologies, and Services (CENTRIC 2012), IARIA, (2012)
M. Burch, M. Raschke, M. Greis, and D. Weiskopf. Diagrammatic Representation and Inference - 7th International Conference, Diagrams 2012, Canterbury, UK, July 2-6, 2012. Proceedings., Springer, (2012)