by PORTNAYA IRINA B,SU, KRUGLOVA SVETLANA I,SU, ANDREEV YURIJ V,SU, KAZAKOVA OLGA A,SU, BUKANOVA EVGENIYA F,SU, SOLOVEVA TATYANA S,SU, POLISHCHUK STEPAN A,SU, BOBROVSKAYA NATALYA K,SU
Year of Publication 23.11.1991