С. Иванов, В. Козлов, Т. Никифорова, О. Койфман, and Д. Пырэу, “Hydrate -anion complex of proton [H(H2O)n]+А− as the basis of the complex acidity function of aqueous solutions of strong mineral acids in excess of water”, RCJ, vol. 67, no. 2, pp. 3-20, Jul. 2023.