T. Riechert, U. Morgenstern, S. Auer, S. Tramp, and M. Martin. The Semantic Web - ISWC 2010 - 9th International Semantic Web Conference,
ISWC 2010, Shanghai, China, November 7-11, 2010, Revised Selected
Papers, Part II, volume 6497 of Lecture Notes in Computer Science, page 225--240. Springer, (2010)