KLOVE, T. On a conjecture of Bruckman. MATHEMATICA SCANDINAVICA, [S. l.], v. 44, p. 225–230, 1979. DOI: 10.7146/math.scand.a-11806. Disponível em: https://www.mscand.dk/article/view/11806. Acesso em: 2 may. 2024.