db/conf/gis/BonhommeTAL99.html Christine Bonhomme Claude Trépied Marie-Aude Aufaure-Portier Robert Laurini A Visual Language for Querying Spatio-Temporal Databases. 34-39 GIS1999/P034.pdf 1999 conf/gis/99 ACM-GIS http://doi.acm.org/10.1145/320134.320144 db/conf/gis/gis99.html#BonhommeTAL99