@phdthesis{Schumann2011,
  author      = {Katharina Schumann},
  title       = {Impact of land-use on savanna vegetation and populations of non-timber forest product-providing tree species in West Africa},
  type        = {doctoralthesis},
  school      = {Universit{\"a}tsbibliothek Johann Christian Senckenberg},
  year        = {2011},
}