@article{LueckRuehlmann2013,
  author    = {Erika L{\"u}ck and J{\"o}rg R{\"u}hlmann},
  title     = {Resistivity mapping with GEOPHILUS ELECTRICUS - Information about lateral and vertical soil heterogeneity},
  journal   = {Geoderma : an international journal of soil science},
  volume    = {199},
  pages     = {2 -- 11},
  doi       = {10.1016/j.geoderma.2012.11.009},
  year      = {2013},
}