@phdthesis{Eissa2012,
  author      = {Maged Eissa},
  title       = {Long-term behaviour of implant borne overdentures in the lower jaw retained by rigid conical crown attachments},
  type        = {doctoralthesis},
  pages       = {95},
  school      = {Universit{\"a}tsbibliothek Johann Christian Senckenberg},
  year        = {2012},
}