Integrating information sources for recommender systems. - Silvana Vanesa Aciar; Josefina López Herrera; Josep Lluís de la Rosa (CCIA, 2005)

A new approach of shannon entropy in recommender systems. - Josefina López Herrera (Artificial Intelligence and Soft Computing, 2006)

Recommendations Using Information from Selected Sources with the ISIRES Methodology. - Silvana Vanesa Aciar; Josefina López Herrera; Josep Lluís de la Rosa (CCIA, 2006)

Discovering Good Sources for Recommender Systems. - Silvana Vanesa Aciar; Josep Lluís de la Rosa; Josefina López Herrera (DCAI, 2008)