@misc{WendlandBertholdFritscheetal.2012, author = {Frank Wendland and Georg Berthold and Johann-Gerhard Fritsche and Frank Herrmann and Ralf Kunkel and Hans-J{\"u}rgen Voigt and Harry Vereecken}, title = {A conceptual hydrogeological model for evaluating residence times in Hessen}, type = {articler}, year = {2012}, }