1. V. Fock, The Theory of Space Time and Gravitation (Pergamon, Oxford, 1959)
2. G. Ellis, S. Hawking, The Large Scale Structure of Space-Time (Cambridge University Press, Cambridge, 1973)
3. J.L. Anderson, Principles of Relativity Physics (Academic Press, San Diego, 1967)
4. L.D. Landau, E.M. Lifshitz, The Classical Theory of Fields, 4th edn. (Addison-Wesley, Reading, 1987)
5. T.W. Baumgarte, T.L. Shapiro, Numerical Relativity (Cambridge University Press, Cambridge, 2010)