Witaszek, K., S. Shvorov, O. Opryshko, A. Dudnyk, K. Sydorovych, and V. Yakushov. 2025. “Increasing Biogas Yield in Biogas Plants by Adding Whey to Cattle Manure”. Energy and Automation, no. 1 (March): 5-16. https://doi.org/10.31548/energiya1(77).2025.005.