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.
Ann Marie Walsh, Walter A. Burkhard. Efficient algorithms for (3, 1) graphs. Inf. Sci., 13(1):1-10, 1977. [doi]
Abstract is missing.