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.
Tatsuya Shimura. Cut-Free Systems for the Modal Logic S4.3 and S4.3Grz. Reports on Mathematical Logic, 25, 1991. [doi]
Abstract is missing.