“Spectrophotometric Determination of Os(VIII) with Nitroso R Salt as Chromogenic Reagent” (2011) The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, 34(3), pp. 42–46. Available at: https://ojs.ugal.ro/index.php/mms/article/view/2938 (Accessed: 2 November 2026).