Szakova, J., Tlustos, P., Balik, J., Pavlikova, D. a Balikova, M. (2001) „Application of Sequential Extraction Procedure to Evaluation of Influence of Sewage Sludge Amendment on Cd and Zn Mobility in Soil", Chemické listy, 95(10). Dostupné z: http://blog.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/2383 (Viděno: 27 listopad 2024).