Nakić, Domagoj, Dražen Vouk, Mario Šiljeg, and Anđelina Bubalo. “LCA of Heavy Metals Leaching from Landfilled Sewage Sludge Ash”. Journal of Environmental Engineering and Landscape Management 29, no. 3 (October 25, 2021): 359–367. Accessed May 20, 2025. https://journals.vilniustech.lt/index.php/JEELM/article/view/15594.