Fadhil, Omar A., and AbdulRahman H. Saleh. “Effect of the Altitudes and Eccentricity of the Initial Orbit on Satellite Transition Efficiency”. Iraqi Journal of Science 62, no. 2 (February 27, 2021): 699–707. Accessed December 7, 2025. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/2487.