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.
John N. Warfield. Complementary Relations and Map Reading. IEEE Transactions on Systems, Man, and Cybernetics, Part A, 10(6):285-291, 1980. [doi]
Abstract is missing.