@phdthesis{Barth2004,
  author      = {Christof Barth},
  title       = {Medien im Transformationsproze{\"s}},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t Trier},
  doi       = {10.25353/ubtr-xxxx-86a5-0334/},
  year        = {2004},
}