STOCKL, Andrea; LOEFFLER, Daniel; OECHSNER, Hans; JUNGBLUTH, Thomas; FISCHER, Klaus; KRANERT, Martin. Near-infrared-reflection spectroscopy as measuring method to determine the state of the process for automatic control of anaerobic digestion. International Journal of Agricultural and Biological Engineering, [S. l.], v. 6, n. 2, p. 63–72, 2013. Disponível em: https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/732. Acesso em: 26 dec. 2025.