1. Bastrukov, S.I., Weber, F., Podgainy, D.V.: J. Phys. G 25, 107 (1999)
2. Binney, J., Tremaine, S.: Galactic Dynamics. Princeton University Press, Princeton (1987)
3. Borah, B., Haloi, A., Karmakar, P.K.: Astrophys. Space Sci. 361, 165 (2016)
4. Brevik, I.: Mod. Phys. Lett. A 31, 1650050 (2016)
5. Chandrasekhar, S.: An Introduction to the Study of Stellar Structure. University of Chicago Press, Chicago (1938)