Christian Maihöfer Reinhold Eberhardt Elmar Schoch CGGC: Cached Greedy Geocast. 13-25 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2957&spage=13 2004 conf/wwic/2004 WWIC db/conf/wwic/wwic2004.html#MaihoferEC04