by MAKAROV LEV T,SU, MERKULOV VLADISLAV I,SU, BEZVERKHIJ VALERIJ F,SU, EMELYANOV VLADIMIR V,SU, SHVEEV VYACHESLAV I,SU, SHCHEGOLIKHIN VALENTIN P,SU, MARGARYAN GOR A,SU
Year of Publication 15.03.1990