@phdthesis{Igel2007,
  author      = {Jan Igel},
  title       = {On the small-scale variability of electrical soil properties and its influence on geophysical measurements},
  type        = {doctoralthesis},
  pages       = {188},
  school      = {Universit{\"a}tsbibliothek Johann Christian Senckenberg},
  year        = {2007},
}