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. ВНЮК [Internet]. 2025 Jun. 2 [cited 2026 Nov. 14];(2):17-22. Available from: https://nu.auezov.edu.kz/index.php/nu/article/view/233