The following publications are possibly variants of this publication:
- Widening Operators for Powerset DomainsRoberto Bagnara, Patricia M. Hill, Enea Zaffanella. vmcai 2004: 135-148 [doi]
- Widening operators for powerset domainsRoberto Bagnara, Patricia M. Hill, Enea Zaffanella. STTT, 9(3-4):413-414, 2007. [doi]
- Widening operators for powerset domainsRoberto Bagnara, Patricia M. Hill, Enea Zaffanella. STTT, 8(4-5):449-466, 2006. [doi]
- Precise Widening Operators for Convex PolyhedraRoberto Bagnara, Patricia M. Hill, Elisa Ricci 0002, Enea Zaffanella. SAS 2003: 337-354 [doi]
- Precise widening operators for convex polyhedraRoberto Bagnara, Patricia M. Hill, Elisa Ricci 0002, Enea Zaffanella. SCP, 58(1-2):28-56, 2005. [doi]