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KAFKA, H.
Tensor Analysis. Annalen der Physik, 1919, vol. 58, pp. 1-54.
KOTTLER, FRIEDRICH.
Uber die physikalischen Grundlagen der einsteinschen Gravitätionstheorie. Annalen der Physik, Leipzig, 1918, Band 56, Folge 4, pp. 408-462. LARMOR, J.
Essence of Physical Relativity. Nat. Acad. Sci. Proc., vol. 4, Nov., 1918.
LAUE, RD. M.
Das Relativitätsprinzip. Braunschweig, 1911. 208 p.
LECORNU, LÉON.
La Mécanique. Paris: Flammarion, 1909.
LORENTZ, H. A.
Considerations élémentaires sur le principe de relativité. Revue générale des sciences, Paris, 1914. Tome 25, pp. 179-186.
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On Hamilton’s principle in Einstein’s theory of gravitation. Koninklijke Akademie van Wetenschappen. Proceedings, Amsterdam, 1917, vol. 19, pp. 751-765.
LUNN, ARTHUR C.
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See also: Astro-Physical Journal, vol. 37, pp. 100-193. The report of the crucial experiments that upset the idea of a stationary ether.
Easy Lessons in Einstein · The Wunder Library — complete classics, free to read, with narration.