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.
Burkhard Englert, Manuel Lerman, Kevin Wald. Homomorphisms and quotients of degree structures. Annals of Pure and Applied Logic, 123(1-3):193-233, 2003. [doi]