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2. Application of He’s variational iteration method for Lie’nard equations;abadi;World Applied Sciences Journal,2009
3. He’s variational iteration method for solving nonlinear mixed Volterra–Fredholm integral equations;Yousefi;Computers and Mathematics with Applications,2009
4. application of the variational iteration method for system of nonlinear Volterra’s integro-differential equations;Abbasbandy;Mathematical and Computational Applications,2009
5. Solution of systems of integral-differential equations by variational iteration method;Matinfar;Journal of Mathematics and Computer Science,2010