Photograph Participants of the 6th CSS session in Novosibirsk: V.Sabelfeld (second from the left), G.Plotnikova (5th from the left), L.Efros (6th from the left) Date: 21.05.1981 Original document language: russian Persons: Leonid B. Efros, Galina A. Plotnikova, Viktor K. Sabelfeld