1. J.D. Bekenstein, Black holes and entropy, Phys. Rev. D 7 (1973) 2333 [
INSPIRE
].
2. S.W. Hawking, Particle Creation by Black Holes, Commun. Math. Phys. 43 (1975) 199 [Erratum ibid. 46 (1976) 206] [
INSPIRE
].
3. R.D. Sorkin, 1983 paper on entanglement entropy: “On the Entropy of the Vacuum outside a Horizon”,
arXiv:1402.3589
[
INSPIRE
].
4. L. Bombelli, R.K. Koul, J. Lee and R.D. Sorkin, A Quantum Source of Entropy for Black Holes, Phys. Rev. D 34 (1986) 373 [
INSPIRE
].
5. V.P. Frolov and I. Novikov, Dynamical origin of the entropy of a black hole, Phys. Rev. D 48 (1993) 4545 [
gr-qc/9309001
] [
INSPIRE
].