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.
Elja Arjas, Ilkka Norros. Life Lengths and Association: A Dynamic Approach. Math. Oper. Res., 9(1):151-158, 1984. [doi]