Letter The author asks the addressee's advise on his journey to the USSR to visit the universities of Leningrad, Moscow and Novosibirsk. His book on the lambda calculus will appear in Russian translation and he wants to give some lectures. Date: 30.07.1984 Original document language: English Authors: H.P. Barendregt Organizations: Math. Inst. Addressee: Andrei Petrovich Ershov
