KUIPERS, L. Relations Between Contiguous Generalized Legendre Associated Functions (Recurrence Formulas). MATHEMATICA SCANDINAVICA, [S. l.], v. 6, p. 200–206, 1958. DOI: 10.7146/math.scand.a-10544. Disponível em: https://www.mscand.dk/article/view/10544. Acesso em: 29 apr. 2024.