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.
J. Scott Provan. Convexity and the Steiner tree problem. Networks, 18(1):55-72, 1988. [doi]
Abstract is missing.