Fatsis, Antonios, Angeliki Panoutsopolou, Nikolaos Vlachakis, and Vassilios Vlachakis. “On Exact Solutions to the 3-D Navier-Stokes Equations With Emphasis on Unsteady Porous Flow”. Asian Journal of Engineering and Technology 1, no. 1 (May 9, 2013). Accessed May 19, 2022. https://ajouronline.com/index.php/AJET/article/view/75.