@phdthesis{Reitz2018,
  author      = {Florian Reitz},
  title       = {Learning From the Past of a Digital Library - Using Historical Metadata to Study the Development of Collections.},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t Trier},
  doi       = {10.25353/ubtr-xxxx-daf0-72ad},
  year        = {2018},
}