@incollection{itb1962,
  author = {Gessler, Michael},
  editor = {J. Gairin, M. A. Essomba, \& D. Muntane},
  title = {El sistema de formación professional in Alemania},
  year = {2009},
  booktitle = {La calidad de la Formación Profesional en Europa, hoy},
  pages = {23–50},
  publisher = {Wolters Kluwer Espana},
}