Janos, P. a Wildnerova, M. (2001) „Study of Extractability of Inorganic Sulfur Compounds Using a pH-stat Leaching Test", Chemické listy, 95(1). Dostupné z: http://ww-w.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/2456 (Viděno: 22 prosinec 2024).