Researchr is a web site for finding, collecting, sharing, and reviewing scientific publications, for researchers by researchers.
Sign up for an account to create a profile with publication list, tag and review your related work, and share bibliographies with your co-authors.
Roberto Bagnara, Patricia M. Hill, Enea Zaffanella. Widening operators for powerset domains. STTT, 8(4-5):449-466, 2006. [doi]