“CHARACTERIZATION OF THE SOL-GEL PROCESS IN THE SYSTEM YxBax+nCu2x+nOδ (x = 1, n=1, x=2, n=3, x=3, n=2): UDC 546.56+54.057”. Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry, vol. 54, no. 2, Apr. 2018, pp. 31-34, https://chemistry.bulletin.knu.ua/article/view/8539.