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.
Carlos A. Heuser, Eduardo Meira Peres. Rumo a um modelo conceitual completo: Redes de Petri e Diagramas E/R. RITA, 1(1):45-77, 1989.
Abstract is missing.