Maisalatee, A. U., Azos, M. M. and Ewa, I. I. (2021) “Complete Einstein’s Equations of Motion for Test Particles Exterior to Spherical Massive Bodies using a Varying Potential”, International Astronomy and Astrophysics Research Journal, 3(1), pp. 43–53. Available at: https://www.journaliaarj.com/index.php/IAARJ/article/view/37 (Accessed: 5 September 2026).