FOSKETT, D. J. Trends in Research on Universal Classification. Journal of Information and Knowledge, [S. l.], v. 16, n. 2, p. 62–64, 1979. DOI: 10.17821/srels/1979/v16i2/50474. Disponível em: https://srels.org/index.php/sjim/article/view/50474. Acesso em: 4 mar. 2025.