Archive
Correspondence
Outgoing foreign mail (1980)
Letter, A.P. Ershov->D. S. Scott, 08.12.1980
Letter, A.P. Ershov->J. Kazimour, 12.12.1980
Letter, A.P. Ershov->D. G. Skordev, 11.12.1980
Covering letter, A.P. Ershov->M. Nivat, 18.12.1980
Letter, A.P. Ershov->E. Sandewall, 22.12.1980

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