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.
Arie Tamir. A Unifying Location Model on Tree Graphs Based on Submodularity Properties. Discrete Applied Mathematics, 47(3):275-283, 1993. [doi]