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Archive Ershov's Personal File 50th birthday anniversary Crossword puzzle

	Crossword puzzle "Grounds for necessity and desirability of celebrating Ershov's birthday anniversary". Date: 19.04.1981 Original document language: Russian Authors: G. G. Stepanov Organizations: CC SB RAS Addressee: Andrei Petrovich Ershov Images of pages: 1 2 Back Next document (Printout) Previous document (Telegram)
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