Ruchika Mehta, and P. R. Sharma. “Three-Dimensional Couette Flow Through Porous Medium Between Two Infinite Horizontal Parallel Porous Plates”. International Journal of Mathematics And Its Applications, vol. 6, no. 1 - D, Mar. 2018, pp. 719-30, https://ijmaa.in/index.php/ijmaa/article/view/1133.