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.
Zvonimir Sikic. Continuing Variations on a System of Gentzen. Math. Log. Q., 31(31-34):537-544, 1985. [doi]
Abstract is missing.