Baltrėnas, Pranas, and Alvydas Zagorskis. “Investigation into the Air Treatment Efficiency of Biofilters of Different Structures”. Journal of Environmental Engineering and Landscape Management 18, no. 1 (March 31, 2010): 23-31. Accessed November 10, 2024. https://jcem.vgtu.lt/index.php/JEELM/article/view/6064.