J. M. Khalifeh, B. M. Al-Khamiseh, and R. S. Hijjawi. “Solution of the Hamilton – Jacobi Equations in an Electromagnetic Field Using Separation of Variables Method – Staeckel Boundary Conditions”. Jordan Journal of Physics 13, no. 1 (April 24, 2025). Accessed April 27, 2025. https://jjp.yu.edu.jo/index.php/jjp/article/view/724.