1. S.L. Shapiro, S.A. Teukolsky, The Physics of Compact Objects (John Wiley, New York, 1983)
2. S.A. Voronov, A.M. Galper, V.G. Kirilov-Ugryumov, S.V. Koldashov, A.V. Popov, JETP Lett. 43, 307 (1986)
3. A.M. Galper, S.V. Koldashov, V.V. Mikhailov, S.A. Voronov, Radiat. Meas. 26, 375 (1996)
4. M.R. Hossen, A.A. Mamun, Braz. J. Phys. 44, 673 (2014)
5. M.R. Hossen, S.A. Ema, A.A. Mamun, Commun. Theo. Phys. 62, 888 (2014)