Bernhard Anrig Importance Measures from Reliability Theory for Probabilistic Assumption-Based Reasoning. 692-703 2001 conf/ecsqaru/2001 ECSQARU http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2143&spage=0692 db/conf/ecsqaru/ecsqaru2001.html#Anrig01