D. Newman, K. Hagedorn, C. Chemudugunta, and P. Smyth. JCDL '07: Proceedings of the 2007 conference on Digital libraries, page 366--375. New York, NY, USA, ACM Press, (2007)
D. Newman, K. Hagedorn, C. Chemudugunta, and P. Smyth. JCDL '07: Proceedings of the 2007 conference on Digital libraries, page 366--375. New York, NY, USA, ACM Press, (2007)