Frank van der Linden Jan Bosch Erik Kamsties Kari Känsälä J. Henk Obbink Software Product Family Evaluation. 110-129 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3154&spage=110 2004 conf/splc/2004 SPLC db/conf/splc/splc2004.html#LindenBKKO04