Archive
Domestic trips
Severodonetsk
Telegrams and Memo, L. B. Efros->A.P. Ershov..., 26.05.1980-29.05.1980
Telegram, E.P. Kuznetsov->A.P. Ershov, 02.06.1980
Printout, 05.06.1980
Printout, 05.06.1980
Thesis, 06.06.1980
Article (Printout), 06.06.1980

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