Pilarska, Agnieszka, Tomasz Kałuża, Maciej Pawlak, and Tomasz Kalupa. “The Use of Sewage Sludge in Anaerobic Digestion: Formation, Properties, and Implementation”. Technical Sciences 27, no. 27 (November 25, 2024): 321–340. Accessed February 15, 2025. https://czasopisma.uwm.edu.pl/index.php/ts/article/view/10725.