Thomas Rölleke, Norbert Fuhr. Retrieval of Complex Objects Using a Four-Valued Logic. In Hans-Peter Frei, Donna Harman, Peter Schäuble, Ross Wilkinson, editors, Proceedings of the 19th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 96, August 18-22, 1996, Zurich, Switzerland (Special Issue of the SIGIR Forum). pages 206-214, ACM, 1996. [doi]
Abstract is missing.