SELMER, Ernst S. A conjecture concerning rational points on cubic curves. Mathematica Scandinavica, Berkeley, CA, United States, v. 2, p. 49–54, 1954. DOI: 10.7146/math.scand.a-10394. Disponível em: https://journals.msp.org/mscand/article/view/2932. Acesso em: 25 jul. 2026.