Manish Raj, Abhay Jha, and Anil Sharma, “Effects of Thermal Radiation and Variable Fluid Viscosity on Stagnation Point Flow Past a Porous Stretching Sheet Embedded in Porous Medium With Partial Slip Condition”, Int. J. Math. And Appl., vol. 4, no. 3 - A, pp. 139–148, Sep. 2016.