OLIVER, James W. The Beilstein System: Strategies for Effective Searching. Issues in Science and Technology Librarianship, [S. l.], n. 18, 1998. DOI: 10.29173/istl2634. Disponível em: https://journals.library.ualberta.ca/istl/index.php/istl/article/view/2634. Acesso em: 28 oct. 2025.