1. Angelidaki, I., Ellegaard, L., and Ahring, B.K., Biotechnol., 2003, vol. 82, pp. 1–32.
2. Faaij, A.P.C., Energy Policy, 2006, vol. 34, no. 3, pp. 322–342.
3. Prochnow, A., Heiermann, M., Plöchl, M., Linke, B., Indler, C., Amon, T., and Hobbs, P.J., Biores. Technol, 2010, vol. 21, pp. 4931–4944.
4. Sponza, D.T. and Atalay, H., Process Bichem., 2005, vol. 40, no. 1, pp. 25–34.
5. Gutierrez, O., Park, D., Sharma, K.R., and Yuan, Z., Water Res. 2010, vol. 44, no. 11, 3467–3475.