Pouzar, M., Cernohorsky, T., Bulanek, R. a Krejcova, A. (2000) „Determination of Copper in Zeolites by Wavelenth-disperse X-Ray Spectrometry", Chemické listy, 94(3). Dostupné z: http://ww.w.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/2532 (Viděno: 7 prosinec 2022).