M. Troldborg, W. Nowak, P. Binning, P. Løgstrup, and R. Helmig. Seventh International Groundwater Quality Conference: Groundwater Quality Management in a Rapidly Changing World (GQ10), volume 342 of Redbook, page --. Zurich, Switzerland, Seventh International Groundwater Quality Conference: Groundwater Quality Management in a Rapidly Changing World (GQ10), IAHS Press, (June 2010)ISBN: 978-1-907161-16-2.
R. Enzenhöfer, W. Nowak, and R. Helmig. Conceptual and Modelling Studies of Integrated Groundwater, Surface Water, and Ecological Systems, volume 342 of Redbook, page --. Zurich, Switzerland, Seventh International Groundwater Quality Conference: Groundwater Quality Management in a Rapidly Changing World (GQ10), IAHS Press, (June 2010)ISBN: 978-1-907161-16-2.