Pathria, R.K., author
Hindustan, 1974
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Rindler, Wolfgang, author
Springer-Verlag, 1977
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Schroder, Ulrich E., author
World Scientific, 1990
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Yilmaz, Huseyin, author
Blaisdell, 1965
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Einstein, Albert, 1879-1955, author
Dover, 1992
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