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.
David Pokrass Jacobs. Undecidability of Winkler s ::::r::::-Neighborhood Problem for Covering Digraphs. Journal of Combinatorial Theory, Series A, 60(2):254-267, 1994. [doi]
Abstract is missing.