IYER, H.; LALITHA, S. Hierarchical Structures and Effectiveness of Indexing Language. Journal of Information and Knowledge, [S. l.], v. 22, n. 2, p. 65–75, 2014. DOI: 10.17821/srels/1985/v22i2/49435. Disponível em: https://srels.org/index.php/sjim/article/view/49435. Acesso em: 4 mar. 2025.