@article{HenrichsWelkerUhl2009,
  author    = {M. Henrichs and A. Welker and M. Uhl},
  title     = {Modelling of biofilters for ammonium reduction in combined sewer overflow},
  journal   = {Water Science and Technology},
  volume    = {60},
  number    = {3},
  pages     = {825 -- 831},
  year      = {2009},
}