Rashidi, M. M. M., and S. A. A. Mohimanian Pour. “Analytic Approximate Solutions for Unsteady Boundary-Layer Flow and Heat Transfer Due to a Stretching Sheet by Homotopy Analysis Method”. Nonlinear Analysis: Modelling and Control 15, no. 1 (January 25, 2010): 83–95. Accessed May 16, 2024. https://www.journals.vu.lt/nonlinear-analysis/article/view/14366.