David E. Losada, Alvaro Barreiro. Negations and Document Length in Logical Retrieval. In Alberto Apostolico, Massimo Melucci, editors, String Processing and Information Retrieval, 11th International Conference, SPIRE 2004, Padova, Italy, October 5-8, 2004, Proceedings. Volume 3246 of Lecture Notes in Computer Science, pages 196-207, Springer, 2004. [doi]
Abstract is missing.