SIDDIQUEE, Q.; BHATTACHARYA, P. Online Patent Searching Techniques: An Overview. DESIDOC Journal of Library & Information Technology, [S. l.], v. 23, n. 4, 2003. DOI: 10.14429/djlit.23.4.3603. Disponível em: https://publications.drdo.gov.in/ojs/index.php/djlit/article/view/3603. Acesso em: 7 jul. 2025.