Ludwik Silberstein (February 1, 1936). "Two-Centers Solution of the Gravitational Field Equations, and the Need for a Reformed Theory of Matter". Physical Review. 49 (3): 268–270. Bibcode:1936PhRv...49..268S. doi:10.1103/PhysRev.49.268.
G., T. (1934). "Review of Causality: a Law of Nature or a Maxim of the Naturalist? Lecture delivered at the Royal York Hotel, Toronto, on May 14th, 1932, much enlarged". Nature. 133 (3355): 235. doi:10.1038/133235c0. ISSN0028-0836. S2CID4093081. The initials "T.G." might be those of the mathematician Thomas Greenwood, who wrote articles for Nature and had an interest in relativity theory. Greenwood, Thomas (1923). "The Significance of the Space-Time Continuum". Monist. 33 (4): 635–640. doi:10.5840/monist192333418. ISSN0026-9662.
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Ludwik Silberstein (February 1, 1936). "Two-Centers Solution of the Gravitational Field Equations, and the Need for a Reformed Theory of Matter". Physical Review. 49 (3): 268–270. Bibcode:1936PhRv...49..268S. doi:10.1103/PhysRev.49.268.
Douglas, A. V. (1930). "Review of "The Size of the Universe" by Ludwik Silberstein". Journal of the Royal Astronomical Society of Canada. 24: 322. Bibcode:1930JRASC..24..322D.
G., T. (1934). "Review of Causality: a Law of Nature or a Maxim of the Naturalist? Lecture delivered at the Royal York Hotel, Toronto, on May 14th, 1932, much enlarged". Nature. 133 (3355): 235. doi:10.1038/133235c0. ISSN0028-0836. S2CID4093081. The initials "T.G." might be those of the mathematician Thomas Greenwood, who wrote articles for Nature and had an interest in relativity theory. Greenwood, Thomas (1923). "The Significance of the Space-Time Continuum". Monist. 33 (4): 635–640. doi:10.5840/monist192333418. ISSN0026-9662.
G., T. (1934). "Review of Causality: a Law of Nature or a Maxim of the Naturalist? Lecture delivered at the Royal York Hotel, Toronto, on May 14th, 1932, much enlarged". Nature. 133 (3355): 235. doi:10.1038/133235c0. ISSN0028-0836. S2CID4093081. The initials "T.G." might be those of the mathematician Thomas Greenwood, who wrote articles for Nature and had an interest in relativity theory. Greenwood, Thomas (1923). "The Significance of the Space-Time Continuum". Monist. 33 (4): 635–640. doi:10.5840/monist192333418. ISSN0026-9662.