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.
Malay K. Sen, B. K. Sanyal. Indifference Digraphs: A Generalization of Indifference Graphs and Semiorders. SIAM J. Discrete Math., 7(2):157-165, 1994. [doi]
Abstract is missing.