“MUTUAL COORDINATION OF SYSTEMS BASED ON POLYMERIC STRUCTURES OF RARE-EARTH METAL IONS AND RATIONALE FOR THE STUDIES MUTUAL COORDINATION OF SYSTEMS BASED ON POLYMERIC STRUCTURES OF RARE-EARTH METAL IONS AND RATIONALE FOR THE STUDIES”. SOUTH KAZAKHSTAN SCIENCE HERALD, no. 2, June 2025, pp. 17-22, https://doi.org/10.54251/2616-6429.2025.02.0003nu.