CRĂCIUN A, ZUGRAVU AG, RUSU A. Sustainability of the anaerobic digestion biogas production system. ACROSS Journal of Interdisciplinary Cross-border Studies [Internet]. 26Mar.2025 [cited 22Apr.2025];9(1):11-6. Available from: https://gup.ugal.ro/ugaljournals/index.php/across/article/view/7318