Vahdati, M., S. Beigmoradi, and A. Batooei. “Minimising Drag Coefficient of a Hatchback Car Utilising Fractional Factorial Design Algorithm”. European Journal of Computational Mechanics, vol. 27, no. 4, Aug. 2018, pp. 322-41, https://journals.riverpublishers.com/index.php/EJCM/article/view/786.