Dariusz Dereniowski Marek Kubale Efficient Parallel Query Processing by Graph Ranking. 273-285 2006 69 Fundam. Inform. 3 http://iospress.metapress.com/openurl.asp?genre=article&issn=0169-2968&volume=69&issue=3&spage=273 db/journals/fuin/fuin69.html#DereniowskiK06