Martin Erwig, Markus Schneider. Vague Regions. In Michel Scholl, Agnès Voisard, editors, Advances in Spatial Databases, 5th International Symposium, SSD 97, Berlin, Germany, July 15-18, 1997, Proceedings. Volume 1262 of Lecture Notes in Computer Science, pages 298-320, Springer, 1997. [doi]
Abstract is missing.