@article{Gruening2008,
  author    = {H. Gr{\"u}ning},
  title     = {Abflusssteuerung - quo vadis?},
  journal   = {Korrespondenz Abwasser},
  volume    = {55},
  number    = {Nr. 4},
  pages     = {358 -- 364},
  year      = {2008},
}