RUAN, Roger; CHEN, Paul. Cover Story: Algae to Fuels Research at the University of Minnesota. International Journal of Agricultural and Biological Engineering, Beijing, China, v. 2, n. 4, p. Front Inside Cover, 2010. Disponível em: https://www.ijabe.org/index.php/ijabe/article/view/206. Acesso em: 31 jan. 2026.