Simulik, V. M., I. Yu. Krivsky, and I. L. Lamer. “Bosonic Symmetries, Solutions, and Conservation Laws for the Dirac Equation With Nonzero Mass”. Ukrainian Journal of Physics 58, no. 6 (October 10, 2018): 523. Accessed November 22, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018322.