2nd row: S.Yu.Maslov, I.D. Zaslavskij, ? Golota, R.Plyushkavichus, G.E.Mints, G.V.Davydov, V.A.Lifschitz, V.P.Orevkov, A.Plyushkavichene. 1st row: V.A. Matulis, N.A.Shanin, A.A.Markov, A.V.Sochilina.
1969, Trakaj.