@phdthesis{Wingendorf2005,
  author      = {Ralf Wingendorf},
  title       = {Kritische Modalphilosophie},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t Trier},
  doi       = {10.25353/ubtr-xxxx-ec27-19c5/},
  year        = {2005},
}