RITU SAHU; P. L. SANODIA; ARVIND GUPTA. Some Fixed Point Theorems under Generalized Expansion Principle with Control Function. International Journal of Mathematics And its Applications, [S. l.], v. 3, n. 4 - A, p. 23–25, 2015. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/483. Acesso em: 3 jul. 2024.