@misc{GrueningHoppe2008,
  author    = {H. Gr{\"u}ning and H. Hoppe},
  title     = {Spectrophotometric applications in wastewater and storm water sewers. 11th International Conference on Urban Drainage, Edinburgh, Scotland, UK 2008},
  institution = {Energie · Geb{\"a}ude · Umwelt (EGU)},
  type      = {lecture},
  year        = {2008},
}