Chandrasekhar, Subrahmanyan; Ferrari, Valeria (8. 8. 1995). „On the Non-Radial Oscillations of a Star: V. A Fully Relativistic Treatment of a Newtonian Star”. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. The Royal Society. 450 (1939): 463—475. ISSN1364-5021. doi:10.1098/rspa.1995.0094.
Chandrasekhar, Subrahmanyan; Ferrari, Valeria (8. 8. 1995). „On the Non-Radial Oscillations of a Star: V. A Fully Relativistic Treatment of a Newtonian Star”. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. The Royal Society. 450 (1939): 463—475. ISSN1364-5021. doi:10.1098/rspa.1995.0094.