Hybrid Qualifications : Structures and Problems in the Context of European VET PolicyThomas Deissinger, Josef Aff, Alison Fuller, Christian Helms Jørgensen · First published 2013Open the Tome
Wissenschaftsorientierung und Praxisbezug in der Didaktik der ÖkonomieWilfried Schneider, Richard Fortmüller, Josef Aff · First published 1996Open the Tome
