“Equilibrium and Thermodynamic Characteristics of Sorption 2-(4’-sulfophenylazo)chromotropic Acid by Highly Basic Anion Exchanger”. Sorbtsionnye I Khromatograficheskie Protsessy, vol. 16, no. 1, Nov. 2019, pp. 59-65, https://journals.vsu.ru/sorpchrom/article/view/1325.