Alexander Kozlenkov Michael Schroeder PROVA: Rule-Based Java-Scripting for a Bioinformatics Semantic Web. 17-30 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2994&spage=17 2004 conf/dils/2004 DILS db/conf/dils/dils2004.html#KozlenkovS04