@incollection{GrueningOrth2001,
  author    = {H. Gr{\"u}ning and H. Orth},
  title     = {Investigations on the dynamics of the compositions of combined wastewater using on-line analyzers},
  booktitle = {1st IWA conference on Instrumentation, Control and Automation, Malm{\"o}, Sweden, 03.-07. June 2001},
  year      = {2001},
}