Nahool, Tarek Abdelwahab, Yasser Mostafa, Muhammad Anwar, and Gamal A. Yahya. “Charmonium Properties”. East European Journal of Physics0, no. 3 (August 13, 2020): 31-38. Accessed December 4, 2024. https://periodicals.karazin.ua/eejp/article/view/15426.