by ABRAMOV NIKOLAJ P,SU, SELYANDIN SERGEJ V,SU, RYABKO ALEKSANDR G,SU, MASLICHENKO PETR A,SU, BESPALYJ VLADIMIR D,SU, FILIPPOV YURIJ A,SU, GALANTSEV VLADIMIR N,SU, VASILEV YURIJ V,SU
Year of Publication 07.04.1990