00620naa#a2200193#i#450# EN\\bibl\121714 20260505103657.2 3034-4689 20260424b2026####ek#y0engy0150####ca RU STRUCTURE, COMPOSITION, AND MECHANISM OF ACTION OF HETEROGENEOUS ZIEGLER-NATTA CATALYSTS IN PROPYLENE POLYMERIZATION (REVIEW) Journal article Kazan Kazan National Research Technological University 2026 10 с. Journal article local Muravlev D. V. Muravlev D. V. Sazonov O O vestniktu.ru