1. S.W. Hawking, Particle Creation by Black Holes, Commun. Math. Phys.43 (1975) 199 [Erratum ibid.46 (1976) 206] [INSPIRE].
2. S.D. Mathur, The information paradox: A pedagogical introduction, Class. Quant. Grav.26 (2009) 224001 [arXiv:0909.1038] [INSPIRE].
3. A. Almheiri, D. Marolf, J. Polchinski, D. Stanford and J. Sully, An Apologia for Firewalls, JHEP09 (2013) 018 [arXiv:1304.6483] [INSPIRE].
4. D. Marolf and J. Polchinski, Gauge/Gravity Duality and the Black Hole Interior, Phys. Rev. Lett.111 (2013) 171301 [arXiv:1307.4706] [INSPIRE].
5. J.M. Maldacena, The large N limit of superconformal field theories and supergravity, Int. J. Theor. Phys.38 (1999) 1113 [hep-th/9711200] [INSPIRE].