Andrea Capotorti Tania Paneni An Operational View of Coherent Conditional Previsions. 132-143 2001 conf/ecsqaru/2001 ECSQARU http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2143&spage=0132 db/conf/ecsqaru/ecsqaru2001.html#CapotortiP01