DUBCHAK, LESIA. “FUZZY CLUSTER MODELING OF BIOGAS ENERGY OUTPUT”. Herald of Khmelnytskyi National University. Technical sciences 359, no. 6.1 (December 11, 2025): 168–172. Accessed January 26, 2026. https://heraldts.khmnu.edu.ua/index.php/heraldts/article/view/1953.