Letter Ershov is sorry for his inabiltly to come to the Munich Congress, since presently he is heavily engaged in the ALPHA project ; hopes for a meeting during Ershov's visit to the USA in the beginning of 1963 Date: 02.06.1962 Original document language: russian Authors: Andrei Petrovich Ershov Organizations: Informatics Inc. Addressee: W. F. Bauer