publicaciones seleccionadas artículo académico GRAPH-BASED NAVIGATION STRATEGIES FOR HETEROGENEOUS SPATIAL DATA SETS. LECTURE NOTES IN COMPUTER SCIENCE. 4197:353-369. 2006 DEFINING AND COMPARING CONTENT MEASURES OF TOPOLOGICAL RELATIONS. GEOINFORMATICA. 8(4):347-371. 2004 A CONTENT-BASED APPROACH TO SEARCHING AND INDEXING SPATIAL CONFIGURATIONS 2002