E. A. Reshetnyak, A. I. Risuhina, N. N. Kamneva, and K. V. Goloviznina, “Influence of tetrabutylammonium bromide and sodium bromide on acid-base properties of thymol blue in water-ethanol medium”, Khark. Univ. Bull. Chem. Ser., no. 29, pp. 46-52, Dec. 2017.