@phdthesis{Boltersdorf2014,
  author      = {Stefanie Helene Boltersdorf},
  title       = {A critical appraisal of accumulative biomonitors to assess and to map sources and rates of atmospheric nitrogen deposition on different regional scales in Germany},
  type        = {doctoralthesis},
  school      = {Universit{\"a}t Trier},
  doi       = {10.25353/ubtr-xxxx-35e9-a516},
  year        = {2014},
}