Stephani, H., & Stewart, J. M. (1990). General relativity: An introduction to the theory of the gravitational field (2nd ed.). Cambridge University Press.
Chicago-viite (17. p.)Stephani, Hans, ja John M. Stewart. General Relativity: An Introduction to the Theory of the Gravitational Field. 2nd ed. Cambridge [England] ; New York: Cambridge University Press, 1990.
MLA-viite (9. p.)Stephani, Hans, ja John M. Stewart. General Relativity: An Introduction to the Theory of the Gravitational Field. 2nd ed. Cambridge University Press, 1990.
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