BHAUMIK, S.; TIWARI, S. K. General coupled fixed point theorem for a nonlinear contractive condition in a cone metric space. Eurasian Mathematical Journal, [S. l.], v. 9, n. 3, 2024. Disponível em: https://emj.enu.kz/index.php/main/article/view/122. Acesso em: 19 nov. 2024.