A Summation Formula Coupled with Contiguous Relation and Recurrence Relation. Global Journal of Science Frontier Research, [S. l.], v. 13, n. 40, p. 75–91, 2013. Disponível em: https://journalofscience.org/index.php/GJSFR/article/view/103246. Acesso em: 25 oct. 2026.