@phdthesis{Bertram2003,
  author      = {Silke Bertram},
  title       = {Late Quaternary sand ramps in south-western Namibia - Nature, origin and palaeoclimatological significance},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t W{\"u}rzburg},
  year        = {2003},
}