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. W. Sander. On maximal antihierarchic sets of integers. Discrete Mathematics, 113(1-3):179-189, 1993. [doi]