Letter, N.P. Semykin->A.P. Ershov, 25.03.1986
Telegram, B. A. Wichmann->A.P. Ershov, 01.09.1983
Letter, E. V. Lishak->A.P. Ershov, 31.10.1983The author sends to Ershov his work (presumedly, "Notes of a parasystem programmer").
Article, 23.09.1983"Notes of a parasystem programmer".
Letter, B. V. Biryukov->A.P. Ershov, 09.03.1986
Telegram, Andrianov->A.P. Ershov, 08.03.1986
Letter, V. I. Nifontov ->A.P. Ershov, 06.03.1984
Letter, B. Tamm->A.P. Ershov, 30.03.1984
Letter, A. Ya. Khalamaizer->A.P. Ershov, 31.01.1986
Letter, 25.04.1984
Letter, A. B. Osovik->A.P. Ershov, 10.05.1984
Letter, A.P. Ershov->E. N. Salnikov, 15.04.1985
Letter (hand-written), I. Boguslavsky->A.P. Ershov, 12.06.1984
Documents, 19.07.1984
Conclusion, A.P. Ershov->R.A. Khabib, 22.10.1984
Letter, Unknown Author->A.P. Ershov, 28.12.1984
Letter with attachment, L. F. Sternberg->A.P. Ershov, 01.03.1985
Letter, A. V. Anisimov->A.P. Ershov, 20.04.1985
Letter, G. I. Kozyreva->A.P. Ershov, 20.03.1985
Letter, L. P. Zarva->A.P. Ershov, 10.04.1985
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