Bhavana Deshpande, Amrish Handa, and Chetna Kothari, “Employing weak $\psi-\varphi$ Contraction in Common Coupled Fixed Point Results for Hybrid Pairs of Mappings Satisfying (EA) Property”, Int. J. Math. And Appl., vol. 3, no. 4 - F, pp. 29–44, Dec. 2015.