GOPINATH, M. A. Design of Concept Codes in Information Retrieval: An Analysis of Trends. Journal of Information and Knowledge, [S. l.], v. 24, n. 4, p. 226–234, 1987. DOI: 10.17821/srels/1987/v24i4/49568. Disponível em: https://srels.org/index.php/sjim/article/view/49568. Acesso em: 7 nov. 2024.