Covering letter, A.P. Ershov->G. I. Marchuk, 28.07.1980
Letter, A.P. Ershov->Yu. I. Manin, 30.09.1980
Letter, 25.05.1980
Letter, A.P. Ershov->Budykho, 16.01.1980
Letter, A.P. Ershov->Y. V. Puhnachev, 16.01.1980
Letter, A.P. Ershov->V. Chavchanidze, 16.01.1980
Letter, A.P. Ershov->M. I. Sergeev, 30.09.1980
Letter, A.P. Ershov->E. A. Zhogolev, 22.01.1980
Letter, A.P. Ershov->O. B. Lupanov, 23.01.1980
Letter, A.P. Ershov->S. I. Samoilenko, 29.01.1980
Letter, A.P. Ershov->Yu. I. Manin, 31.01.1980Complimentary review of the addresse's book; thoughts and impressions produces by reading the texts on the foundations of mathematics
Letter, A.P. Ershov->Yu. A. Shreider, 12.02.1980asking for the copies of papers included in the dissertation; speaking of the problems of studying human societies especially attracting the author
Letter, A.P. Ershov->V. I. Kuptsov, 12.02.1980
Letter, A.P. Ershov->B. V. Shabat, 16.04.1980
Letter, A.P. Ershov->V. S. Semenov, 14.04.1980
Letter, A.P. Ershov->Ya. M. Barzdin, 14.04.1980The author is sending over an abstract of L.Chernobrod's dissertation and requests an opinion on the work's "dissertability"
Letter, A.P. Ershov->V. M. Savinkov, 22.04.1980
Letter, A.P. Ershov->V. A. Uspensky, 22.04.1980
Letter, A.P. Ershov->N. P. Trifonov, 23.04.1980
Letter, A.P. Ershov->D. N. Todoroi, 25.04.1980
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