SACERDOTE, G. S. On a Problem of Boone. MATHEMATICA SCANDINAVICA, [S. l.], v. 31, p. 111–117, 1972. DOI: 10.7146/math.scand.a-11417. Disponível em: https://www.mscand.dk/article/view/11417. Acesso em: 24 nov. 2024.