by FOLKOVICH M.I.,SU, SMIRNOV YU.M.,SU, BADRIAN A.S.,SU, BRODSKIJ D.YU.,SU, ROVNYAKOVA I.P.,SU, MIKHALKIN A.P.,SU, KHOLOMYANSKIJ I.YA.,SU, SELIVANOVA I.S.,SU, BOLDIN V.S.,SU
Year of Publication 15.11.1991