A. Bellogin, P. Castells, and I. Cantador. Proceedings of the fifth ACM conference on Recommender systems - RecSys 2011, page 333 -- 336. ACM Press, (2011)
R. Cañamares, and P. Castells. Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, ACM, (August 2017)
E. Fischer, D. Zoller, A. Dallmann, and A. Hotho. KI 2020: Advances in Artificial Intelligence, 12325, page 275-282. Cham, Springer International Publishing, (2020)