EL HADI, W. M. Faceted Classifications as a Model for Universal Classifications. Journal of Information and Knowledge, [S. l.], v. 50, n. 6, p. 721–734, 2013. DOI: 10.17821/srels/2013/v50i6/43817. Disponível em: https://srels.org/index.php/sjim/article/view/43817. Acesso em: 26 dec. 2024.