Nagy, G., Takács, A., Kállay, A.A. and Mentes, D. 2018. The anaerobic digestion of sheep manure in self-designed low-cost biogas reactor. Analecta Technica Szegedinensia. 12, 2 (Dec. 2018), 13–23. DOI:https://doi.org/10.14232/analecta.2018.2.13-23.