Letter, W. A. Depp->A.P. Ershov, 27.10.1978
Letter, A.P. Ershov->J. F. Traub, 29.03.1978concerning the visit to the USA planned for the end of the year; Ershov would be glad to spend two days at the Carnegie-Mellon University and read lectures
Telegram, I.V. Pottosin->J. T. Schwartz..., 17.10.1978
Telegram, I.V. Pottosin->W. F. Atchison..., 17.10.1978
Telegram, I.V. Pottosin->W. F. Atchison..., 12.10.1978
Letter, A.P. Ershov->J. T. Schwartz, 19.07.1978discussing the details of the forthcoming visit to the USA
Telegram, A.P. Ershov->W. A. Wulf, 23.08.1978
Letter, A.P. Ershov->N. Metropolis, 30.08.1978
Letter, A.P. Ershov->F. P. Brooks, 30.08.1978in reply to the letter of May 5 , 1978: hopes to spend a weekend in Chapel Hill; informing of a good progress of the addressee's biik publication
Letter, A.P. Ershov->R. M. Balzer, 30.08.1978
Letter, A.P. Ershov->A. V. Aho, 30.08.1978
Letter, A.P. Ershov->W. A. Wulf, 30.08.1978Accepting the invitation to Pittsburg and discussing the details
Letter, A.P. Ershov->P. Armer, 30.08.1978
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