Alkahtani, B., M. Subhas Abel, and E.H.~Aly. “Effects of the Velocity Slip on a Viscous Dissipation of Mhd Flow and Heat transfer over a Thin Liquid Film on an Unsteady Stretching Sheet”. Revista Mexicana De Física, vol. 62, no. 6, Jan. 2016, pp. 576-85, doi:10.31349/RevMexFis.62.6.576.