@article{GrueningOrth2002,
  author    = {H. Gr{\"u}ning and H. Orth},
  title     = {Investigations on the dynamics of the compositions of combined wastewater using on-line analyzers},
  journal   = {Water Science and Technology},
  volume    = {Vol. 45},
  number    = {No. 4/5},
  pages     = {77 -- 83},
  year      = {2002},
}