SUMAROKOV, Leonid N. On the Recursive Definition of a Format for Communication. Information Technology and Libraries, [S. l.], v. 4, n. 2, p. 61–63, 1971. DOI: 10.6017/ital.v4i2.5586. Disponível em: https://ital.corejournals.org/index.php/ital/article/view/5586. Acesso em: 1 may. 2024.