P. Pantel, M. Gamon, O. Alonso, and K. Haas. Proceedings of the 35th International ACM SIGIR Conference on Research and Development in Information Retrieval, page 285--294. New York, NY, USA, ACM, (2012)
P. Brusilovsky, H. Hsiao, and M. Yudelson. JCDL '08: Proceedings of the 8th ACM/IEEE-CS joint conference on Digital libraries, page 337--340. New York, NY, USA, ACM, (2008)
P. Brusilovsky, H. Hsiao, and M. Yudelson. JCDL '08: Proceedings of the 8th ACM/IEEE-CS joint conference on Digital libraries, page 337--340. New York, NY, USA, ACM, (2008)