Czechoslovakia. City of Prague. November 24, 1968. XV meeting of the Permanent Commission of CMEA (Council for Mutual Economic Assistance) on the use of atomic energy for peaceful purposes. Signing of the protocol. Present: R. Kolos (Hungary), A. Rau (GDR), S. Andzhievsky (Poland), C. Pona (Romania), A. Petrosyants (USSR), J. Neumann (Czechoslovakia).