Gnatenko, Kh. P., and V. M. Tkachuk. “Two-Particle System in Noncommutative Space With Preserved Rotational Symmetry”. Ukrainian Journal of Physics 61, no. 5 (January 6, 2019): 432. Accessed November 23, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019086.