2017. SOL-GEL SYNTHESIS AND ELECTRICAL CONDUCTIVITY OF SOLID SOLUTIONS LaBa6-xCu7Oy (0≤x≤2): UDC 549.5+546.64`4`42+548.32. Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry. 53, 1 (May 2017), 39–41.