00471naa#a2200169#i#450# EN\\bibl\10829 20250129231830.3 2223-4608 20160331b2016####ek#y0engy0150####ca RUS RU Basic Types of Modern Modifiers for Cast Iron and Steel Journal article Bryansk Bryansk State Technical University 2016 8 с. Journal article local Davydov S. zh-szf.ru