@article{HoppeMessmannGigaetal.2009,
  author    = {H. Hoppe and S. Messmann and A. Giga and H. Gr{\"u}ning},
  title     = {Options and limits of quantitative and qualitative online-monitoring of industrial discharges into municipal sewage systems},
  journal   = {Water Science \& Technology WST},
  volume    = {Vol 60},
  number    = {No 4},
  pages     = {859 -- 867},
  year      = {2009},
}