Lenin, Vladimir I., author
Dietz Verlag, 1952
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Meader, H.
Zurich Atlantis 1945
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Halle (Saale) Veb Verlag Sprache und Literatur 1961
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Mann, Thomas, author
Phillip Briefe, 1929
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Al-Andalusi, Abu -Muhammad Ali Ibn-Hazm
Leiden Brill 1942
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