CALLAS, N. P.; THRON, W. J. Singular Points of Certain Functions Represented by C-Fractions. The Journal of the Indian Mathematical Society, [S. l.], v. 32, n. 1-2, p. 325–353, 1968. DOI: 10.18311/jims/1968/16780. Disponível em: https://informaticsjournals.com/index.php/jims/article/view/16780. Acesso em: 5 may. 2024.