RAO, K. N.; TALWAR, V. Content-based Document Recommender System for Aerospace Grey Literature: Experimental Testing and User Opinion Survey. DESIDOC Journal of Library & Information Technology, [S. l.], v. 31, n. 4, 2011. DOI: 10.14429/djlit.31.4.1107. Disponível em: https://publications.drdo.gov.in/ojs/index.php/djlit/article/view/1107. Acesso em: 27 jun. 2025.