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.
Fred R. McMorris, Henry Martyn Mulder. Subpath acyclic digraphs. Discrete Mathematics, 154(1-3):189-201, 1996. [doi]
Abstract is missing.