@article{BoettcherMerzLischeidetal.2014,
  author    = {Steven B{\"o}ttcher and Christoph Merz and Gunnar Lischeid and Ralf Dannowski},
  title     = {Using Isomap to differentiate between anthropogenic and natural effects on groundwater dynamics in a complex geological setting},
  journal   = {Journal of hydrology},
  volume    = {519},
  pages     = {1634 -- 1641},
  doi       = {10.1016/j.jhydrol.2014.09.048},
  year      = {2014},
}