Vania Bogorny João Francisco Valiati Sandro da Silva Camargo Paulo Martins Engel Bart Kuijpers Luis Otávio Alvares Mining Maximal Generalized Frequent Geographic Patterns with Knowledge Constraints. 813-817 2006 conf/icdm/2006 ICDM http://doi.ieeecomputersociety.org/10.1109/ICDM.2006.110 db/conf/icdm/icdm2006.html#BogornyVCEKA06