Sultana, Kazi Shamim, and MZ Hafiz. “Energy Dependence of Total Cross Section for Scattering of Helium Atoms from Isolated Atomic Steps”. Journal of Bangladesh Academy of Sciences 34, no. 1 (July 13, 2010): 23–31. Accessed November 23, 2024. https://banglajol.info/index.php/JBAS/article/view/5489.