Proceedings the 7th International Conference on Semantic Systems, I-SEMANTICS 2011, Graz, Austria, September 7-9, 2011
C. Ghidini, A.-C. Ngonga Ngomo, S. N. Lindstaedt, T. Pellegrini, eds., Proceedings the 7th International Conference on Semantic Systems, I-SEMANTICS 2011, Graz, Austria, September 7-9, 2011, ACM, 2011.