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.
Virgil Nicolae Serbanuta, Traian-Florin Serbanuta. Injectivity of the Parikh Matrix Mappings Revisited. Fundamenta Informaticae, 73(1-2):265-283, 2006. [doi]