Archive
Domestic trips
Moscow
Cover, 25.01.1988-03.02.1988
Notes, 25.01.1988-03.02.1988
Post card, M. Nivat->A.P. Ershov, 25.01.1988(?)
Telegram, G. K. Skryabin->A.P. Ershov, 11.01.1988
Congratulation, P. V. Nesterov->A.P. Ershov, 23.01.1988
Methodical material, 23.01.1988

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