- 
								[1]
								S.W. Hawking and G. F. R. Ellis, The Large Scale Structure of Spacetime (Cambridge: Cambridge University Press, 1973) 
- 
								[2]
								Stephen Hawking, Phys. Rev. D, 14: 2460 (1976) 
- 
								[3]
								G. T. Horowitz and J. M. Maldacena, JHEP, 0402: 008 (2004) 
- 
								[4]
								S. D. Mathur, Lect. Notes Phys., 769: 3 (2009) 
- 
								[5]
								H. Zhang, Sci. Rep., 7: 4000 (2017) 
- 
								[6]
								A. Almheiri, D. Marolf, J. Polchinski, and J. Sully, JHEP, 1302: 062 (2013) 
- 
								[7]
								A. Almheiri, D. Marolf, J. Polchinski et al, JHEP, 1309: 018 (2013) 
- 
								[8]
								P. Chen, Y. Chin Ong, D. N. Page et al, Phys. Rev. Lett., 116: 161304 (2016) 
- 
								[9]
								J. Maldacena and L. Susskind, Fortsch. Phys., 61: 781 (2013) 
- 
								[10]
								A. D. Sakharov, Zh. Eksp. Teor. Fiz. 49, 345 (1966) [Sov.Phys. JETP 22, 241 (1966)]. 
- 
								[11]
								E. B. Gliner, Sov. Phys. JETP, 22: 378 (1966) 
- 
								[12]
								J. M. Bardeen, in: Conference Proceedings of GR5, Tbilisi, USSR, 1968, p. 174 
- 
								[13]
								A. Borde, Phys. Rev. D, 50: 3692 (1994) 
- 
								[14]
								A. Borde, Phys. Rev. D, 55: 7615 (1997) 
- 
								[15]
								C. Barrabes and V. P. Frolov, Phys. Rev. D, 53: 3215 (1996) 
- 
								[16]
								A. Cabo and E. Ayon-Beato, Int. J. Geom. Methods Mod. Phys. A, 14: 2013 (1999) 
- 
								[17]
								S. A. Hayward, Phys. Rev. Lett., 96: 031103 (2006) 
- 
								[18]
								E. Ayon-Beato and A. Garcia, Phys. Rev. Lett., 80: 5056 (1998) 
- 
								[19]
								E. Ayon-Beato and A. Garcia, Phys. Lett. B, 464: 25 (1999) 
- 
								[20]
								E. Ayon-Beato and A. Garcia, Gen. Relativ. Gravit., 37: 635 (2005) 
- 
								[21]
								M. S. Ma, Ann. Phys. (Amsterdam), 362: 529 (2015) 
- 
								[22]
								E. Ayon-Beato and A. Garcia, Phys. Lett B, 493: 149 (2000) 
- 
								[23]
								Z.-Y. Fan and X. Wang, Phys. Rev. D, 94: 124027 (2016) 
- 
								[24]
								H. Huang, M. Jiang, J. Chen, and Y. Wang, Gen. Relativ. Gravit., 47: 8 (2015) 
- 
								[25]
								H. Huang, P. Liao, J. Chen, and Y. Wang, J. Grav. 2014,231727 (2014) 
- 
								[26]
								C.F.B. Macedo and L.C.B. Crispino, Phys. Rev. D, 90: 064001 (2014) 
- 
								[27]
								C.F.B. Macedo, L.C.B. Crispino, and E.S. de Oliveira, Int. J. Mod. Phys. D, 25: 1641008 (2016) 
- 
								[28]
								C.F.B. Macedo, E.S. de Oliveira, and L.C.B. Crispino, Phys. Rev. D, 92: 024012 (2015) 
- 
								[29]
								W. G. Unruh, Phys. Rev. D, 14: 3251 (1976) 
- 
								[30]
								S. Dolan, C. Doran, and A. Lasenby, Phys. Rev. D, 74: 064005 (2006) 
- 
								[31]
								I. I. Cotăescu, C. Crucean, and C. A. Sporea, Eur. Phys. J. C, 76: 102 (2016) 
- 
								[32]
								I. I. Cotăescu, C. Crucean, and C. A. Sporea, Eur. Phys. J. C, 76: 413 (2016) 
- 
								[33]
								C. A. Sporea, Chinese Physics C, 41(12): 123101 (2017) 
- 
								[34]
								S. R. Das, G. Gibbons, and S. D. Mathur, Phys. Rev. Lett., 78: 417 (1997) 
- 
								[35]
								W. M. Jin, Classical and Quantum Gravity, 15(10): 3163 (1998) 
- 
								[36]
								C. Doran and A. Lasenby, Phys. Rev, D, 66: 024006 (2002) 
- 
								[37]
								E. Jung, S. H. Kim, and D. K. Park, JHEP, 09: 005 (2004) 
- 
								[38]
								H. Cho and Y. Lin, Classical and Quantum Gravity, 22(5): 775 (2005) 
- 
								[39]
								A. B. Gaina and G. A. Chizhov, Moscow Univ. Phys. Bull., 38N2: 1-7 (1983) 
- 
								[40]
								A. B. Gaina, Moscow VINITI, No. 1970-80 Dep. , 20 pp. (1980) 
- 
								[41]
								M. Rogatko and A. Szyplowska, Phys. Rev. D, 79: 104005 (2009) 
- 
								[42]
								H. Liao, J-H. Chen, P. Liao, and Y-J. Wang, Commun. Theor. Phys., 62: 227-234 (2014) 
- 
								[43]
								A. Ghosh and P. Mitra, Phys. Rev. D, 50: 7389-7393 (1994) 
- 
								[44]
								I.I. Cotăescu, Mod. Phys. Lett. A, 13: 2923 (1998) 
- 
								[45]
								V. M. Villalba, Mod. Phys. Lett. A, 8: 2351-2364 (1993) 
- 
								[46]
								I. I. Cotăescu, J. Phys. A Math. Gen., 33: 1977 (2000) 
- 
								[47]
								B. Thaller. The Dirac Equation. (Springer Verlag, Berlin Heidelberg, 1992) 
- 
								[48]
								V. B. Berestetski, E. M. Lifshitz, and L. P. Pitaevski, Quantum Electrodynamics, (Oxford: Pergamon Press, 1982) 
- 
								[49]
								I. I. Cotăescu, Phys. Rev. D, 60: 124006 (1999) 
- 
								[50]
								I. I. Cotăescu, Phys. Rev. D, 65: 084008 (2002) 
- 
								[51]
								I. I. Cotaescu and C. Crucean, Mod. Phys. Lett. A, 22: 3707-3720 (2008) 
- 
								[52]
								I. I. Cotaescu, R. Racoceanu, and C. Crucean, Mod. Phys. Lett. A, 21: 1313-1318 (2006) 
- 
								[53]
								I.I. Cotăescu, Mod. Phys. Lett. A, 22: 2493 (2007) 
- 
								[54]
								C.A. Sporea, Mod. Phys. Lett. A, 30: 1550145 (2015) 
- 
								[55]
								C. Crucean, Mod. Phys. Lett. A, 22: 2573-2585 (2007) 
- 
								[56]
								C. Crucean, Mod. Phys. Lett. A, 25: 1679-1687 (2010) 
- 
								[57]
								C. Crucean, R. Racoceanu, and A. Pop, Phys. Lett. B, 665: 409-411 (2008) 
- 
								[58]
								I. I. Cotaescu and C. Crucean, Int. J. Mod. Phys. A, 23: 1351-1359 (2008) 
- 
								[59]
								M. Rose. Relativistic Electron Theory (New York: John Wiley & Sons, 1961) 
- 
								[60]
								F. W. J. Olver, D. W. Lozier, R. F. Boisvert, and C. W. Clark, NIST Handbook of Mathematical Functions (Cambridge: Cambridge University Press, 2010) 
- 
								[61]
								D. R. Yennie, D. G. Ravenhall, and R. N. Wilson, Phys. Rev., 95: 500 (1954) 
- 
								[62]
								K. W. Ford and J. A. Wheeler, Ann. Phys. (N.Y.), 7: 259 (1959) 
- 
								[63]
								K. W. Ford and J. A. Wheeler, Ann. Phys. (N.Y.), 7: 287 (1959) 
- 
								[64]
								P. Anninos, C. DeWitt-Morette, R. A. Matzner, P. Yioutas, and T. R. Zhang, Phys. Rev. D, 46: 4477 (1992) 
- 
								[65]
								R. A. Matzner, C. DeWitte-Morette, B. Nelson, and T.-R. Zhang, Phys. Rev. D, 31: 1869 (1985)