Robert B. Allen. A query interface for an event gazetteer. In Hsinchun Chen, Howard D. Wactlar, Ching-chih Chen, Ee-Peng Lim, Michael G. Christel, editors, ACM/IEEE Joint Conference on Digital Libraries, JCDL 2004, Tuscon, AZ, USA, June 7-11, 2004, Proceedings. pages 72-73, ACM, 2004. [doi]