Tošić, S. B., S. S. Mitić, A. N. Pavlović, E. T. Pecev-Marinković, D. A. Kostić, and S. M. Rančić. “Analytical Application of the Reaction System Disulphonated Hydroquinone-Hydrogen Peroxide for the Kinetic Spectrophotometric Determination of Iron Traces in Acidic Media”. HEMIJSKA INDUSTRIJA (Chemical Industry), vol. 73, no. 6, Dec. 2019, pp. 387-96, doi:10.2298/HEMIND190704032T.