Michael Leuschel Germán Vidal Forward Slicing by Conjunctive Partial Deduction and Argument Filtering. 61-76 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3444&spage=61 2005 conf/esop/2005 ESOP db/conf/esop/esop2005.html#LeuschelV05