@phdthesis{Rey2008,
  author      = {G{\"u}nter Daniel Rey},
  title       = {Lernen mit Multimedia. Die Gestaltung interaktiver Animationen.},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t Trier},
  doi       = {10.25353/ubtr-xxxx-b4a5-cb26},
  year        = {2008},
}