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.
Zhi-Zhong Chen, Michelangelo Grigni, Christos H. Papadimitriou. Map graphs. Journal of the ACM, 49(2):127-138, 2002. [doi]