Liliana Calderón-Benavides, Cristina N. González-Caro, Edgar Chávez, Nivio Ziviani: String Processing and Information Retrieval - 19th International Symposium, SPIRE 2012, Cartagena de Indias, Colombia, October 21-25, 2012. Proceedings. Lecture Notes in Computer Science 7608, Springer 2012, ISBN 978-3-642-34108-3