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Bucuresți: Ed. Academiei Republicii Socialiste România, 1989
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1930
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Darmstadt: Steinkopff, 1957
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Leipzig: Barth, 1931
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Berlin: Julius Springer, 1923
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Berlin: Nishen, 1988
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Berlin; Heidelberg [u.a.]: Springer, 2002
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Heidelberg: Iris Verlag, 1928
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Berlin: Deutsche Schallplatten, 1977
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2016
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Frontiers, 2016
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The Burlington Magazine Publications, Ltd., 1964
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JSTOR, 1957
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JSTOR, 1957
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Frontiers Media SA, 2016
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JSTOR, 1958
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Springer Science and Business Media LLC, 2023