@incollection{itb1818,
  author = {Gessler, Michael},
  editor = {R. Bröckermann \& M. Müller-Vorbrüggen},
  title = {Das Kompetenzmodell},
  year = {2010},
  booktitle = {Handbuch Personalentwicklung},
  pages = {43–62},
  publisher = {Schäffer-Poeschel},
  language = {de},
}