@book{Hoettges1992,
  author    = {H{\"o}ttges, J{\"o}rg},
  title     = {Zur Methode der numerischen Simulation von Stoffausbreitungsvorg{\"a}ngen in Fließgew{\"a}ssern},
  address   = {Aachen},
  pages     = {XIII, 121 S. : graph. Darst.},
  year      = {1992},
  language  = {de}
}
@book{Hoettges1992,
  author    = {H{\"o}ttges, J{\"o}rg},
  title     = {Zur Methodik der numerischen Simulation von Stoffausbreitungsvorg{\"a}ngen in Fließgew{\"a}ssern},
  address   = {Aachen},
  pages     = {XIII, 121 S. : graph. Darst.},
  year      = {1992},
  language  = {de}
}
@article{HoettgesWallisGuymer1992,
  author    = {H{\"o}ttges, J{\"o}rg and Wallis, Steve G. and Guymer, Ian},
  title     = {Das ATZ-Modell zur Vorhersage des Schadstofftransports in Fl{\"u}ssen},
  series = {Wasserwirtschaft. 82 (1992), H. 10},
  journal   = {Wasserwirtschaft. 82 (1992), H. 10},
  isbn      = {0043-0978},
  pages     = {494 -- 497},
  year      = {1992},
  language  = {de}
}