Ahmed, A., Cateni, B. G., Huhnke, R. L., & Lewis, R. S. (2006). Effects of biomass-generated producer gas constituents on cell growth, product distribution and hydrogenase activity of Clostridium carboxidivorans P7T. Biomass and Bioenergy, 30(7), 665-672. https://doi.org/10.1016/j.biombioe.2006.01.007