Diego Calvanese, Evgeny Kharlamov, Werner Nutt, Camilo Thorne. Aggregate queries over ontologies. In Ramez Elmasri, Martin Doerr, Mathias Brochhausen, Hyoil Han, editors, Proceedings of the 2nd International Workshop on Ontologies and Information Systems for the Semantic Web, ONISW 2008, Napa Valley, California, USA, October 30, 2008. pages 97-104, ACM, 2008. [doi]
Abstract is missing.