TY - GEN A1 - Prescher, Thomas A1 - Bogner, Christian T1 - Activity-Based Learning as Strategy of Self-Education in the Area of Vocational Training: The Didactical Concept of Task-Prototypes in the Project CROCODIL (bmbf). Vortrag auf der 8 ÉME Colloque Sur L´Autoformation (Konferenz zur Selbstbildung), Straßburg, 29. Oktober 2014 Y1 - 2014 ER -