Bazeľ, J., & Andruch, V. (2006). Spectrophotometric Determination of Elements Using Basic Dye Reagents ? The Present State and Trends. Chemické Listy, 100(9). Získáno z http://w-ww.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/1883