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.
Karl Straßner. Kongruenzen und Erweiterungen von Semimoduln. Elektronische Informationsverarbeitung und Kybernetik, 15(7):367-376, 1979.
Abstract is missing.