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.
Hanns-Martin Teichert. On the Cartesian Sum of Undirected Graphs. Elektronische Informationsverarbeitung und Kybernetik, 18(12):639-646, 1982.
Abstract is missing.