@phdthesis{Franke2016,
  author      = {Gabriele Franke},
  title       = {Potsherds in time : the pottery of the Nigerian Nok Culture and its chronology},
  type        = {doctoralthesis},
  pages       = {461},
  school      = {Universit{\"a}tsbibliothek Johann Christian Senckenberg},
  year        = {2016},
}