@article{MeyerRichterHartung-Beck2020,
  author    = {Meyer, Andr{\´e} and Richter, Dirk and Hartung-Beck, Viola},
  title     = {The relationship between principal leadership and teacher collaboration: investigant the mediating effect of teachers' collective efficacy},
  series = {Educational management administration \& leadership},
  volume    = {2020},
  issn      = {1741-1440},
  year      = {2020},
  language  = {en}
}
@incollection{MuslicHartung-Beck2021,
  author    = {Muslic, Barbara and Hartung-Beck, Viola},
  title     = {Evidenzorientierte Konzepte der Schulentwicklung und des Schulleitungshandelns},
  series = {Vermessen? : zum Verh{\"a}ltnis von Bildungsforschung, Bildungspolitik und Bildungspraxis},
  publisher = {Waxmann},
  address   = {M{\"u}nster},
  pages     = {195 -- 212},
  year      = {2021},
  language  = {de}
}