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.
Egon Balas, Nicos Christofides. A restricted Lagrangean approach to the traveling salesman problem. Math. Program., 21(1):19-46, 1981. [doi]
Abstract is missing.