ANIMESH GUPTA; P. S. KAURAV. PPF Dependent Fixed Point Theorem for $(\alpha - \psi)-$contractive Mappings in Banach Spaces. International Journal of Mathematics And its Applications, [S. l.], v. 4, n. 1 - A, p. 39–58, 2016. Disponível em: http://ijmaa.in/index.php/ijmaa/article/view/544. Acesso em: 13 may. 2024.