by PLATONOV BORIS N,SU, YAKHIN VLADIMIR G,SU, LYSOV SERGEJ V,SU
Year of Publication 30.06.1991

by YAKHIN VLADIMIR G,SU, KRAYACHICH VALERIJ V,SU, LYSOV SERGEJ V,SU, APPANASEVICH VYACHESLAV V,SU
Year of Publication 23.07.1991