@article{Berkhoff2007,
  author    = {Karin Berkhoff},
  title     = {Groundwater vulnerability assessment to assist the measurement planning of the water framework directive : a practical approach with stakeholders},
  journal   = {Hydrology and earth system sciences discussions},
  volume    = {4},
  pages     = {1133 -- 1151},
  doi       = {10.5194/hessd-4-1133-2007},
  year      = {2007},
}