VICKERY, B. The Structure of Subject Classifications for Document Retrieval. Journal of Information and Knowledge, [S. l.], v. 62, n. 2, p. 97–102, 2025. DOI: 10.17821/srels/2025/v62i2/171796. Disponível em: https://mail.srels.org/index.php/sjim/article/view/171796. Acesso em: 5 feb. 2026.