Reactivity of Aluminum and Titanium Oxides under the Conditions of the Synthesis of Strontium and Barium Titanates in Water Fluid Media. - Lagunova, E. A.; Ivakin, Yu. D.; Sinev, M. Yu.; Shashkin, D. P.; Gordienko, Yu. A.; Fattakhova, Z. T. (Russian Journal of Physical Chemistry B: Focus on Physics, 2020)