Information
Invitation, Organizing Committee->A.P. Ershov, 15.03.1971
Notification, 02.06.1972
Letter, V. V. Shaydurov->A.P. Ershov, 01.02.1974(?)
Telephone Message, G. I. Marchuk->I.V. Pottosin, 13.02.1974
Letter, 16.12.1974
Invitation, 29.09.1975
Invitation, 21.12.1975
Invitation, Yu, E. Nesterikhin->A.P. Ershov, 20.03.1979
Invitation, 27.04.1979
Brochure, 12.09.1979
Notification, 26.09.1980
Proof, 25.04.1983of the article "40 years later, 30 years later, 20 years later...TODAY!" in memory of an outstanding engineer and great patriot N.I. Bessonov (with Ershov's hand-writted addition "From Karl Efimovich Levitin, July 6, 1983 (Protvino)")
Agenda, V.S.Grigoriev->A.P. Ershov, 04.10.1984
Telephone Messages, N. F. Niznaiko ->A.P. Ershov..., 29.11.1986
Invitation, V. E. Kotov->A.P. Ershov, 03.12.1986
Initial order | In alphabetical order | By date |
