by KIRPICHNIKOV PETR A,SU, EFROS MIKHAIL G,SU, SIMONOVA NADEZHDA N,SU, ARSH YURIJ M,SU, LAJNER IGOR A,SU, GLADCHENKO VLADIMIR I,SU, SIROTIN VLADIMIR P,SU, YAGOVKIN BORIS M,SU, POLYAKOV STEPAN A,SU, AGADZHANYAN SVETLANA I,SU, LIAKUMOVICH ALEKSANDR G,SU, BARANOVA ANTONINA I,SU
Year of Publication 30.11.1991