Xiaofang Zhou Sham Prasher Sai Sun Kai Xu 0003 Multiresolution Spatial Databases: Making Web-Based Spatial Applications Faster. 36-47 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3007&spage=36 2004 conf/apweb/2004 APWeb db/conf/apweb/apweb2004.html#ZhouPSX04