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Archive Editorial activity Lyapunov' 75th Birthday Anniversary Covering letter

	Covering letter Date: 08.10.1986 Original document language: russian Organizations: Editorial Board of "Priroda" Persons: Alexei A. Lyapunov, Nikolai N. Vorontsov Addressee: Andrei Petrovich Ershov Images of pages: 1 Back Next document (Article) Previous document (Letter)
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