ARUNA, A. Z39.50: An Information Retrieval Protocol. DESIDOC Journal of Library & Information Technology, [S. l.], v. 21, n. 6, 2003. DOI: 10.14429/djlit.21.6.3548. Disponível em: https://publications.drdo.gov.in/ojs/index.php/djlit/article/view/3548. Acesso em: 24 jul. 2025.