John Taura J, Leke O, Singh J. Non-autonomous equations of restricted three-body problem with variable masses and zonal harmonics up to J4. JOBASR [Internet]. 2025 Oct. 24 [cited 2026 May 23];3(6):170-6. Available from: https://jobasrfudutsinma.com/index.php/ojs-files/article/view/80