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.
G. R. Vijayakumar. Signed Graphs Represented by D∞. Eur. J. Comb., 8(1):103-112, 1987. [doi]
Abstract is missing.