@misc{indiciaec97966c84d3e,
  title = {Analysis of endogenous process behavior in activated sludge.},
  author = {K J Keesman and H Spanjers and G van Straten},
  year = {1998},
  doi = {10.1002/(sici)1097-0290(19980120)57:2<155::aid-bit4>3.0.co;2-m},
  url = {https://pubmed.ncbi.nlm.nih.gov/10099190/},
  note = {Source identifier: 10099190}
}