@article{GrueningOrthKnollmann1997,
  author    = {H. Gr{\"u}ning and H. Orth and J. Knollmann},
  title     = {Untersuchungen zum Gaspotential von Faulschl{\"a}mmen},
  journal   = {Korrespondenz Abwasser},
  volume    = {44},
  number    = {Nr. 5},
  pages     = {884 -- 894},
  year      = {1997},
}