Arruda Ferraz de Campos, Victor, João Paulo Tavares Cantagallo, Omar R. Llerena-Pizarro, and José Luz Silveira. “Internal Combustion Engine Fueled With Biogas: Energetic, Economic and Environmental Analyses”. IEEE Latin America Transactions 17, no. 11 (December 17, 2019): 1873–1878. Accessed April 27, 2024. https://latamt.ieeer9.org/index.php/transactions/article/view/1808.