KARLSSON, P. W. Reduction of Certain Generalized Kampé de Fériet Functions. MATHEMATICA SCANDINAVICA, [S. l.], v. 32, p. 265–268, 1973. DOI: 10.7146/math.scand.a-11461. Disponível em: https://www.mscand.dk/article/view/11461. Acesso em: 23 jul. 2024.