Sami Abdalla Elbadawi. “Energy- Momentum Relation in a Curved Space– Time Using General Relativity and Potential Dependent Special Relativity”. Eurasian Journal of Physics,Chemistry and Mathematics 6 (May 15, 2022): 12–17. Accessed November 28, 2024. https://geniusjournals.org/index.php/ejpcm/article/view/1370.