Eliseo Clementini, Paolino Di Felice, Peter van Oosterom. A Small Set of Formal Topological Relationships Suitable for End-User Interaction. In David J. Abel, Beng Chin Ooi, editors, Advances in Spatial Databases, Third International Symposium, SSD 93, Singapore, June 23-25, 1993, Proceedings. Volume 692 of Lecture Notes in Computer Science, pages 277-295, Springer, 1993. [doi]
Abstract is missing.