Michael Lutz Roberto Lucchi Anders Friis-Christensen Nicole Ostländer A Rule-Based Description Framework for the Composition of Geographic Information Services. 114-127 2007 conf/geos/2007 GeoS http://dx.doi.org/10.1007/978-3-540-76876-0_8 db/conf/geos/geos2007.html#LutzLFO07