KEYVANFARD, MOHSEN, and B. REZAEI. “Kinetic-Catalytic-Spectrophotometric Determination of Ultra Trace Amounts of Palladium(II) by Its Catalytic Effect on The Oxidation of Naphthol Green B by Metaperiodate”. Asian Journal of Chemistry, vol. 19, no. 7, Mar. 2010, pp. 5305-12, https://asianpubs.org/index.php/ajchem/article/view/13134.