@article{Delforge:3332,
      author        = "Delforge, D. and Vanclooster, M. and Van Camp, M. and
                       Poulain, A. and Watlet, A. and Francis, O.",
      title         = "{Retrieving hydrological connectivity from empirical
                       causality in karst systems}",
      month         = "Apr",
      year          = "2017",
}