Letter D.Aufenkamp and his wife are delighted to have seen A.Ershov again in USA and to learn that his health is improving. D.Aufenkamp has also oncological problems which are discussed further in this letter. Date: 02.03.1987 Original document language: English Authors: Don Aufenkamp, Sue Bogner Persons: Alexander S. Narin'yany Addressee: Andrei Petrovich Ershov
