@article{GrueningPecherQuargVonscheidt2011,
  author    = {Helmut Gr{\"u}ning and Klaus-Hans Pecher and J. Quarg-Vonscheidt},
  title     = {Regenfilter vor Ort},
  journal   = {Der Gemeinderat},
  volume    = {54},
  number    = {6},
  pages     = {44 -- 45},
  year      = {2011},
}