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.
Christoph Hauert. Cooperation, Collectives Formation and Specialization. Advances in Complex Systems, 9(4):315-335, 2006. [doi]
Abstract is missing.