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.
Arild Waaler, Johan W. Klüwer, Tore Langholm, Espen H. Lian. Only knowing with degrees of confidence. J. Applied Logic, 5(3):492-518, 2007. [doi]
Abstract is missing.