@misc{indiciae22ea915f6817,
  title = {Enzymatic activity in the activated-sludge floc matrix.},
  author = {B Frølund and T Griebe and P H Nielsen},
  doi = {10.1007/bf00164784},
  url = {https://pubmed.ncbi.nlm.nih.gov/7546613/},
  note = {Source identifier: 7546613}
}