Boshkayev, K., S. Toktarbay, B. Zhami, A. Taukenova, S. Suleymanova, Z. Kalymova, and M. Abutalip. “Equilibrium Configurations of Slowly Rotating Stars”. Recent Contributions to Physics, vol. 2015, no. 1, Apr. 2015, pp. 78-95, https://bph.kaznu.kz/index.php/zhuzhu/article/view/964.