@phdthesis{Westphal2015,
  author      = {Andrea Westphal},
  title       = {Diagnostische Kompetenzen von Lehrkr{\"a}ften},
  type        = {doctoralthesis},
  pages       = {94},
  school      = {Universit{\"a}t Potsdam},
  year        = {2015},
}