I do not recall any agreement on these matters having been signed by me and Roosevelt. However, it is possible that in individual speeches at the Conference of Three, something of this sort was promised by Roosevelt, and it is possible that this promise or speech is recorded in the transcript or even in some protocol.
Pyzhikov A.V., Danilov A.A. The Birth of a Superpower. 1945-1953. Moscow, 2002. Pp. 20-22.