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Dresden: Verl. der Kunst, 1987
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Sofija: Izd. Bŭlg. Chudožnik, 1965
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Dresden: Verl. der Kunst, 1960
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Sofia: Izdatelstvo Bălgarski Chudožnik, 1960
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AIP Publishing, 2024
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Scientific Research Publishing, Inc., 2012
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Scientific Research Publishing, Inc., 2012
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Scientific Research Publishing, Inc., 2012
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EDP Sciences, 2017
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2015
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2012