TY JOUR TI FORMATION OF PRECURSORS OF OXIDE SYSTEMS BASED ON FE(II, III) AND BA(II) IN AQUEOUS SOLUTIONS KW HETEROPHASE EQUILIBRIA KW FE (II KW III)-BA (II)-H2O-OH SYSTEM KW COMPLEX FORMATION KW POLYNUCLEAR COMPLEXES KW MODELING JO Herald of Technological University AU Muhamadeev, A.E. AU , .. AU , .. AU Dresvyannikov, A.F. PY 2025 IS 28 PB Kazan National Research Technological University