KARLSSON, Per W. Reduction of Certain Generalized Kampé de Fériet Functions. Mathematica Scandinavica, Berkeley, CA, United States, v. 32, p. 265–268, 1973. DOI: 10.7146/math.scand.a-11461. Disponível em: https://journals.msp.org/mscand/article/view/2146. Acesso em: 25 jul. 2026.