Inderjeet Mani David House Gary Klein Lynette Hirschman Therese Firmin Beth Sundheim The Tipster Summac Text Summarization Evaluation. 77-85 1999 EACL http://acl.ldc.upenn.edu/E/E99/E99-1011.pdf db/conf/eacl/eacl1999.html#ManiHKHFS99