@book{FriedrichBruenkenDebusetal.2011, author = {Anja Friedrich and Roland Br{\"u}nken and G{\"u}nter Debus and Detlev Leutner and Friedrich M{\"u}ller}, title = {Wirksamkeit des Ausbildungspraktikums f{\"u}r Fahrlehreranw{\"a}rter}, isbn = {3-86509-498-8}, year = {2011}, }