@article{Berkhoff2008,
  author    = {Karin Berkhoff},
  title     = {Spatially explicit groundwater vulnerability assessment to support the implementation of the Water Framework Directive - a practical approach with stakeholders},
  journal   = {Hydrology and earth system sciences},
  volume    = {12},
  pages     = {111 -- 122},
  doi       = {10.5194/hess-12-111-2008},
  year      = {2008},
}