MODIFIER FOR CAST IRON - BRATCHENKO VLADIMIR P,SU; LITOVKA VIKTOR I,SU; DUBROVIN ANATOLIJ S,SU; MELISOV DMITRIJ D,SU; ROZENFELD KHAIM KH,SU; BUBNOV MIKHAIL P,SU; KRALYA VASILIJ D,SU; BYSTROVA IRINA S,SU; LYKOV NIKOLAJ P,SU (1983)