Mallikarjun Shankar Alexandre Sorokine Budhendra L. Bhaduri David Resseguie Shashi Shekhar Jin Soung Yoo Spatio-temporal Conceptual Schema Development for Wide-Area Sensor Networks. 160-176 2007 conf/geos/2007 GeoS http://dx.doi.org/10.1007/978-3-540-76876-0_11 db/conf/geos/geos2007.html#ShankarSBRSY07