@article{LueckRuehlmannKirchmann2011,
  author    = {Erika L{\"u}ck and J{\"o}rg R{\"u}hlmann and Holger Kirchmann},
  title     = {Properties of soils from the Swedish long-term fertility experiments VI. Mapping soil electrical conductivity with different geophysical methods},
  journal   = {Acta agriculturae Scandinavica : Section B, Soil and plant science},
  volume    = {61},
  number    = {5},
  pages     = {438 -- 447},
  doi       = {10.1080/09064710.2010.502124},
  year      = {2011},
}