00598naa#a2200193#i#450# EN\\bibl\110813 20260208151009.7 3034-4689 20251223b2025####ek#y0engy0150####ca RU FORMATION OF PRECURSORS OF OXIDE SYSTEMS BASED ON FE(II, III) AND BA(II) IN AQUEOUS SOLUTIONS Journal article Kazan Kazan National Research Technological University 2025 7 с. Journal article local Muhamadeev A. E. Dresvyannikov Aleksandr Fedorovich vestniktu.ru