Building a Robust Relational Implementation of Topology.

Erik G. Hoel Sudhakar Menon Scott Morehouse Building a Robust Relational Implementation of Topology. 508-524 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2750&spage=508 2003 conf/ssd/2003 SSTD db/conf/ssd/sstd2003.html#HoelMM03