He's homotopy perturbation method: A strongly promising method for solving non-linear systems of the mixed Volterra-Fredholm integral equations. - Jafar Biazar; Behzad Ghanbari; Mehdi Gholami Porshokouhi; Mohammad Gholami Porshokouhi (Comput. Math. Appl., 2011)

Numerical solution of functional integral equations by the variational iteration method. - Jafar Biazar; Mehdi Gholami Porshokouhi; Behzad Ghanbari; Mohammad Gholami Porshokouhi (J. Comput. Appl. Math., 2011)