Liliana Kasumi Sasaoka, Claudia Bauzer Medeiros. Access Control in Geographic Databases. In John F. Roddick, V. Richard Benjamins, Samira Si-Said Cherfi, Roger H. L. Chiang, Christophe Claramunt, Ramez Elmasri, Fabio Grandi, Hyoil Han, Martin Hepp, Miltiadis D. Lytras, Vojislav B. Misic, Geert Poels, Il-Yeol Song, Juan Trujillo, Christelle Vangenot, editors, Advances in Conceptual Modeling - Theory and Practice, ER 2006 Workshops BP-UML, CoMoGIS, COSS, ECDM, OIS, QoIS, SemWAT, Tucson, AZ, USA, November 6-9, 2006, Proceedings. Volume 4231 of Lecture Notes in Computer Science, pages 110-119, Springer, 2006. [doi]