Telegram, A.P. Ershov->M. C. Ashill, 11.02.1975
Letter, A.P. Ershov->M. C. Ashill, 24.02.1975discussing the meetings and talks during Ershov's future visit to the UK
Telegram, A.P. Ershov->M. C. Ashill, 01.03.1975
Telegram, A.P. Ershov->B. J. Mailloux, 10.03.1975
Telegram, A.P. Ershov->B. L. Marks, 10.03.1975
Telegram, A.P. Ershov->G. Ledin, Jr., 11.03.1975
Telegram, A.P. Ershov->R. T. Yeh, 12.03.1975
Letter, A.P. Ershov->B. Kendzya, 13.03.1975
Telegram, A.P. Ershov->D. Aufenkamp, 14.03.1975
Letter, A.P. Ershov->G. Salton, 17.03.1975Proposing the title and date of Ershov's possible talk in Ithaca
Letter, A.P. Ershov->B. Reusch, 17.03.1975
Letter, A.P. Ershov->J. T. Tou, 12.03.1975
Letter, A.P. Ershov->A. Peters, 14.03.1975
Letter, A.P. Ershov->P. F. Vowles, 17.03.1975
Letter, A.P. Ershov->A. O. Buda, 25.03.1975informing of the author's schedule; giving recommendations and approves the paper for submission to the "Theoretical Computer Science".
Telegram, A.P. Ershov->A. V. Balakrishnan, 27.03.1975
Telegram (hand-written), A.P. Ershov->E. A. Feigenbaum, 31.03.1975
Telegram, A.P. Ershov->Anastasov, 31.03.1975
Letter, A.P. Ershov->W. Niegel, 07.04.1975
Letter, A.P. Ershov->F. L. Bauer, 07.04.1975acknowledging receipt of materials and invitetion to the Summer School; will try to arrive one week ahead of the School beginning
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