1. Adomavicius, G., Manouselis, N., Kwon, Y. (2011). Multi-criteria recommender systems. In Ricci, F., Rokach, L., Shapira, B., Kantor, P.B. (Eds.) Recommender systems handbook (pp. 769–803). USA: Springer.
2. Berners-Lee, T., Hendler, J., Lassila, O. (2001). The semantic Web. Scientific American, 284, 34–43.
3. Blanco-Fernández, Y., López-Nores, M., Pazos-Arias, J.J., García-Duque, J. (2011). An improvement for semantics-based recommender systems grounded on attaching temporal information to ontologies and user profiles. Engineering Applications of Artificial Intelligence, 24(8), 1385–1397.
4. Cantador, I., Fernández, M., Castells, P. (2006). A collaborative recommendation framework for ontology evaluation and reuse. In Proc. of the international ECAI workshop on recommender systems, Riva del Garda, Italy.
5. Carrer-Neto, W., Hernández-Alcaraz, M.L., Valencia-García, R., García-Sánchez, F. (2012). Social knowledge-based recommender system. Application to the movies domain. Expert Systems with Applications, 39(12), 10,990–11,000.