NAUM, Chew Chiat; NORMAN, Michael. Ulrich’s Serials Analysis System. Issues in Science and Technology Librarianship, [S. l.], n. 38, 2003. DOI: 10.29173/istl1947. Disponível em: https://journals.library.ualberta.ca/istl/index.php/istl/article/view/1947. Acesso em: 13 apr. 2026.