“Calculating the Sputtering Yield of Lithium, Sodium and Krypton Bombarded by Same Target Ion Using TRIM Simulation Program”. Ibn AL-Haitham Journal For Pure and Applied Sciences, vol. 29, no. 3, Feb. 2017, pp. 26-35, https://jih.uobaghdad.edu.iq/index.php/j/article/view/9.