“Extraction of Radionuclides 137Cs, 90Sr, 90Y and UO22+ from Aqueous Solutions Using Solid-Phase Extractants Impregnated With Calix[4]arene Phosphine Oxides”. V. N. Karazin Kharkiv National University Bulletin. Chemical Series, no. 44, Apr. 2025, pp. 26-33, https://doi.org/10.26565/2220-637X-2025-44-02.