@phdthesis{Pias2004,
  author      = {Claus Pias},
  title       = {Computer Spiel Welten},
  type        = {doctoralthesis},
  school      = {Bauhaus-Universit{\"a}t Weimar},
  doi       = {10.25643/bauhaus-universitaet.35},
  year        = {2004},
}