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.
Orna Kupferman, Amir Pnueli, Moshe Y. Vardi. Once and for all. J. Comput. Syst. Sci., 78(3):981-996, 2012. [doi]
Abstract is missing.