by SERGEEV YU.S.,SU, ANDRUSHCHENKO L.G.,SU, VILDGRUBE V.G.,SU, BOYARINA M.F.,SU, KUPRIYANOV V.N.,SU, FILATOV O.V.,SU, ZELENOV YU.N.,SU, TAUBKINA E.I.,SU
Year of Publication 28.02.1987