1. Eisenstaedt, J.: La relativité générale à l’étiage: 1925–1955. Arch. Hist. Exact Sci. 35(2), 115–185 (1986)
2. Eisenstaedt, J.: The Curious History of Relativity. How Einstein’s Theory of Gravity was Lost and Found Again. University Press, Princeton (2006)
3. Kennefick, D.: Traveling at the Speed of Thought. University Press, Princeton (2007)
4. Will, C.: The renaissance of general relativity. In: Davies, C.W. (ed.) The New Physics. University Press, Cambridge (1989)
5. Bergmann, P.G.: Introduction to the Theory of Relativity. Prentice-Hall, Englewood Cliffs (1942)