Van Lier, J. B., Grolle, K. C., Frijters, C. T., Stams, A. J., & Lettinga, G. (1993). Effects of acetate, propionate, and butyrate on the thermophilic anaerobic degradation of propionate by methanogenic sludge and defined cultures.

Van Lier, J B., K C. Grolle, C T. Frijters, A J. Stams, and G. Lettinga. Effects of Acetate, Propionate, and Butyrate On the Thermophilic Anaerobic Degradation of Propionate By Methanogenic Sludge and Defined Cultures. 1993.

Van Lier, J B., et al. Effects of Acetate, Propionate, and Butyrate On the Thermophilic Anaerobic Degradation of Propionate By Methanogenic Sludge and Defined Cultures. 1993.