HEMER, O. On some diophantine equations of the type $y^2 - f^2 = x^3$. MATHEMATICA SCANDINAVICA, [S. l.], v. 4, p. 95–107, 1956. DOI: 10.7146/math.scand.a-10458. Disponível em: https://www.mscand.dk/article/view/10458. Acesso em: 27 apr. 2024.