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.
G. Rizzo, N. Fanizzi, J. Lehmann, and L. Bühmann. Knowledge Engineering and Knowledge Management: 20th International Conference, EKAW 2016, Bologna, Italy, November 19-23, 2016, Proceedings, page 511--526. Springer, (2016)