THOSAR, Y. V. Simple Summation formulae Involving Associated Legendre Functions. The Journal of the Indian Mathematical Society, [S. l.], v. 28, n. 1, p. 33–41, 1964. DOI: 10.18311/jims/1964/16853. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/16853. Acesso em: 3 may. 2024.