RÖDSETH, Öystein J. On $h$-bases for $n$. MATHEMATICA SCANDINAVICA, [S. l.], v. 48, p. 165–183, 1981. DOI: 10.7146/math.scand.a-11909. Disponível em: https://www.mscand.dk/article/view/11909. Acesso em: 22 nov. 2024.