Povilaitis, Arvydas. “Source Apportionment and Retention of Nutrients and Organic Matter in the Merkys River Basin in Southern Lithuania”. Journal of Environmental Engineering and Landscape Management 16, no. 4 (December 31, 2008): 195-204. Accessed November 26, 2024. https://transport.vgtu.lt/index.php/JEELM/article/view/6720.