C. Ruiz, C. Vallejo, M. Spiliopoulou, and E. Menasalvas. Current Topics in Artificial Intelligence, volume 5988 of Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2010)
C. Moreno, M. Spiliopoulou, and E. Menasalvas. Proceedings of the 4th International Workshop on Knowledge Discovery from Data Streams. - Berlin, page 117-126. (2006)