Demchyna, O. I.     Quantum-chemical calculation of kinetic regularities of the early stages of sol-gel process in tetraethoxysilane-based systems [Текст] / Demchyna O. I., Yevchuk I. Yu., Kopylets V. I., Koval Z. M., Romaniuk H. V. // Modern problems of physical chemistry : proc. of VI Intern. conf., 9-12 Sept., 2013, Donetsk / Nat. acad. of sciences of Ukraine, Ukr. chem. soc., Donetsk nat. univ. [et al.]. — Donetsk, 2013. — P. 218-219.