CARLITZ, L. A special quartic congruence. MATHEMATICA SCANDINAVICA, [S. l.], v. 4, p. 243–246, 1956. DOI: 10.7146/math.scand.a-10472. Disponível em: https://www.mscand.dk/article/view/10472. Acesso em: 22 nov. 2024.