Mishra, Phool Kant, and R. K. Choudhry. “Restricted Problem of a Rigid Spheroid and an Ellipsoid”. The Journal of the Indian Mathematical Society 38, no. 1-4 (December 1, 1974): 305–317. Accessed May 6, 2024. http://www.informaticsjournals.com/index.php/jims/article/view/16705.