Gupta, S. P., K. Yadav, and L. K. Jha. “He2+ Impact Single Ionization Cross Sections of Cu Atom”. BIBECHANA 19, no. 1-2 (September 12, 2022): 111–118. Accessed April 26, 2024. https://nepjol.info/index.php/BIBECHANA/article/view/46401.