R. Speck, D. Esteves, J. Lehmann, and A. Ngonga Ngomo. 14th International Semantic Web Conference (ISWC 2015), 11-15 October 2015, Bethlehem, Pennsylvania, USA (Semantic Web Challenge Proceedings), (2015)Semantic Web Challenge, International Semantic Web Conference 2015.
R. Speck, and A. Ngonga Ngomo. The Semantic Web -- ISWC 2014, volume 8796 of Lecture Notes in Computer Science, Springer International Publishing, (2014)