BECK, Carl. Peace Research and Information Systems. IASSIST Quarterly, [S. l.], v. 3, n. 1, p. 3, 1979. DOI: 10.29173/iq817. Disponível em: https://iassistquarterly.com/index.php/iassist/article/view/817. Acesso em: 3 jul. 2024.