Mažeikienė, Aušra, Marina Valentukevičienė, Mindaugas Rimeika, Algirdas Bronislovas Matuzevičius, and Regimantas Dauknys. “Removal of Nitrates and Ammonium Ions from Water Using Natural Sorbent Zeolite (clinoptilolite)”. Journal of Environmental Engineering and Landscape Management 16, no. 1 (March 31, 2008): 38-44. Accessed November 9, 2024. https://jcem.vgtu.lt/index.php/JEELM/article/view/6612.