Letter Apologies for misunderstanding concerning participation in the workshop in Estonia; information about including Zamulin and Zang in the list of DBWG members Date: 09.04.1975Original document language: russian Authors: Gennadi K. Stolyarov Organizations: CC SB RAS Persons: Felix R. Tsang, A. V. Zamulin Addressee: Andrei Petrovich Ershov
