David Rohde Michael Drinkwater Marcus Gallagher Tom Downs Marianne Doyle Machine Learning for Matching Astronomy Catalogues. 702-707 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3177&spage=702 2004 conf/ideal/2004 IDEAL db/conf/ideal/ideal2004.html#RohdeDGDD04