Isham, C.J.: Preprint (1973)
Ashtekar, A., Geroch, R.P.: Quantum theory of gravity (preprint 1973)
Penrose, R.: Phys. Rev. Lett.14, 57–59 (1965)
Hawking, S.W.: Proc. Roy. Soc. Lond.A 300, 187–20 (1967)
Hawking, S.W., Penrose, R.: Proc. Roy. Soc. Lond.A 314, 529–548 (1970)
Hawking, S.W., Ellis, G.F.R.: The large scale structure of space-time. London: Cambridge University Press 1973
Hawking, S.W.: The event horizon. In: Black holes. Ed. C.M. DeWitt, B.S. DeWitt. New York: Gordon and Breach 1973
Bardeen, J.M., Carter, B., Hawking, S.W.: Commun. math. Phys.31, 161–170 (1973)
Hawking, S.W.: Mon, Not. Roy. astr. Soc.152, 75–78 (1971)
Carr, B.J., Hawking, S.W.: Monthly Notices Roy. Astron. Soc.168, 399–415 (1974)
Hagedorn, R.: Astron. Astrophys.5, 184 (1970)
Hawking, S.W.: Commun. math. Phys.25, 152–166 (1972)
Carter, B.: Black hole equilibrium states. In: Black holes. Ed. C.M. DeWitt, B.S. DeWitt. New York: Gordon and Breach 1973
Misner, C.W.: Bull. Amer. Phys. Soc.17, 472 (1972)
Press, W.M., Teukolsky, S.A.: Nature238, 211 (1972)
Starobinsky, A.A.: Zh.E.T.F.64, 48 (1973)
Starobinsky, A.A., Churilov, S.M.: Zh.E.T.F.65, 3 (1973)
Bjorken, T.D., Drell, S.D.: Relativistic quantum mechanics. New York: McGraw Hill 1965
Beckenstein, J.D.: Phys. Rev. D.7, 2333–2346 (1973)
Beckenstein, J.D.: Phys. Rev. D.9,
Penrose, R.: Phys. Rev. Lett.10, 66–68 (1963)
Sachs, R.K.: Proc. Roy. Soc. Lond.A 270, 103 (1962)
Eardley, D., Sachs, R.K.: J. Math. Phys.14 (1973)
Schmidt, B.G.: Commun. Math. Phys.36, 73–90 (1974)
Bondi, H., van der Burg, M.G.J., Metzner, A.W.K.: Proc. Roy. Soc. Lond.A 269, 21 (1962)
Carter, B.: Commun. math. Phys.10, 280–310 (1968)
Teukolsky, S.A.: Ap. J.185, 635–647 (1973)
Unruh, W.: Phys. Rev. Lett.31, 1265 (1973)
Unruh, W.: Phys. Rev. D.10, 3194–3205 (1974)
Zeldovich, Ya.B., Starobinsky, A.A.: Zh. E.T.F.61, 2161 (1971), JETP34, 1159 (1972)
