| Directions, G. I. Marchuk->A.P. Ershov, 14.01.1974 to Ershov on his scientific trip to Italy
Expediency Justification, 14.01.1974of Ershov's visit to Italy in June 1974
Letter, G. I. Marchuk->M. A. Lavrentiev, 14.01.1974Petition for sending Ershov to Italy by invitation of Italian Academy of Sciences at the expense of receiving party in June 1974
Telegram, I. V. Plotinsky->I. I. Nedlin, 27.05.1974Order to arrive to Moscow on June 7 for the trip to Italy
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