TY - RPRT TI - A hydrogen-based variable-gain controller for anaerobic digestion processes. AU - J Rodríguez AU - G Ruiz AU - F Molina AU - E Roca AU - J M Lema PY - 2006 DO - 10.2166/wst.2006.486 UR - https://pubmed.ncbi.nlm.nih.gov/16939084/ ID - 16939084 ER -