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Nikolai Dmitriyevich Kondratiev

Nikolai Dmitriyevich Kondratiev (1892-1938), Russian scientist and inventor of the "Kondratjew Cycles" (economic up and down periods in cycles of about 60 years). Portrait in an old Russian newspaper.

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Kondratiev.jpg
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Heimo Aga 2008
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3564x5424 / 4.1MB
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Nikolai Dmitriyevich Kondratiev (1892-1938), Russian scientist and inventor of the "Kondratjew Cycles" (economic up and down periods in cycles of about 60 years). Portrait in an old Russian newspaper.