METHOD OF OPERATING A GROUP OF BLAST FURNACES - SPIRIN NIKOLAJ A,SU; MONASTYRSKOV VIKTOR P,SU; CHENTSOV ARKADIJ V,SU; SHAVRIN SERGEJ V,SU; KOSACHENKO IVAN E,SU; YAROSHENKO YURIJ G,SU; OVCHINNIKOV YURIJ N,SU; FEDULOV YURIJ V,SU; KRASNOBAEV VIKTOR A,SU; MADISON VYACHESLAV V,SU (1989)