by PERLSHTEJN ALEKSANDR A,SU, KOPTEV VLADIMIR S,SU, KOBAKHIDZE NODAR V,SU, BOCHAROV ALEKSEJ S,SU, DMITRIEV ALEKSEJ S,SU, TARNOPOLSKAYA MARINA G,SU, SAGARIYA ALIK M,SU, MANUSOVA NONNA B,SU
Year of Publication 30.03.1991