Ovsiyuk, E. M. “Spin-Zero Cox’s Particle With Intrinsic Structure: General Analysis in External Electromagnetic and Gravitational Fields”. Ukrainian Journal of Physics 60, no. 6 (January 17, 2019): 485. Accessed June 16, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019218.