C. Xiong, R. Power, и J. Callan. Proceedings of the 26th International Conference on World Wide Web, стр. 1271--1279. Republic and Canton of Geneva, Switzerland, International World Wide Web Conferences Steering Committee, (2017)
A. Green, и J. Martínez. Proceedings of the Workshop on Semantic Search (SemSearch 2008) at the 5th European Semantic Web Conference (ESWC 2008) , June 2, 2008, Tenerife, Spain, том 334 из CEUR Workshop Proceedings, CEUR-WS.org, (2008)