* Beckmann, A. (2009). A Conceptual Framework for Cross-Curricular Teaching. Special Issue on Interdisciplinary Teaching. The Montana Mathematics Enthuisiast 6/1, March 2009/ Printversion, S. 1 – 56. | * Beckmann, A. (2009). A Conceptual Framework for Cross-Curricular Teaching. Special Issue on Interdisciplinary Teaching. The Montana Mathematics Enthuisiast 6/1, March 2009/ Printversion, S. 1 – 56. |