HUSSAIN, S. Capacity of Notational Systems:Some New Formulae for Calculations. Journal of Information and Knowledge, [S. l.], v. 28, n. 3, p. 114–122, 1991. DOI: 10.17821/srels/1991/v28i3/50503. Disponível em: https://srels.org/index.php/sjim/article/view/50503. Acesso em: 28 jul. 2025.