Letter, A.P. Ershov->V. N. Kublanovskaya, 30.03.1978
Covering letter (hand-written), P. S. Pankov->A.P. Ershov, 03.07.1978
Letter, A.P. Ershov->P. S. Pankov, 13.07.1978
Letter (hand-written), 24.07.1978
Letter (hand-written), P. S. Pankov->A.P. Ershov, 11.08.1978
Letter, A.P. Ershov->P. S. Pankov, 22.08.1978
Letter with attachment, P. S. Pankov->A.P. Ershov, 01.09.1978
Card, 26.01.1979
Article, 11.07.1978"Substantiable evalutions by electronic computers and their application to one problem in combinatorial geometry" by P.S.Pankov and S.L.Dolmatov.
Letter, 07.02.1979
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