Heyer, R., Klang, J., Hellwig, P., Schallert, K., Kress, P., Huelsemann, B., Theuerl, S., Reichl, U., & Benndorf, D. (2020). Impact of feeding and stirring regimes on the internal stratification of microbial communities in the fermenter of anaerobic digestion plants. Bioresource Technology, 314:. doi:10.1016/j.biortech.2020.123679.