SELMER, Ernst S. On the irreducibility of certain trinomials. MATHEMATICA SCANDINAVICA, [S. l.], v. 4, p. 287–302, 1956. DOI: 10.7146/math.scand.a-10478. Disponível em: https://tidsskrift.dk/math/article/view/10478. Acesso em: 14 aug. 2026.