“SORPTION OF TIN-CHLORIDE COMPLEXES OF PLATINUM, RHODIUM AND IRIDIUM ON THE SILICA GEL WITH GRAFTED N-(5-MERCAPTO-1,3,4-THIADIAZOL-2-YL)-N’-PROPYLUREA GROUPS: UDC 541.183:546.92+546.97+546.93”. Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry, vol. 45, no. 2, Apr. 2008, pp. 39-42, https://chemistry.bulletin.knu.ua/article/view/8342.