GOULD, H. W. Fjeldstad’s Series and the $q$-Analog of a Series of Dougall. MATHEMATICA SCANDINAVICA, [S. l.], v. 8, p. 198–200, 1960. DOI: 10.7146/math.scand.a-10609. Disponível em: https://www.mscand.dk/article/view/10609. Acesso em: 3 may. 2024.