1. ‘Wachen, Aufmerksamkeit und Schlafen';Birbaumer,1995
2. Mobilisation of the Nervous System;Butler,1991
3. ‘Swiss ball exercises';Carrière;Physical Therapy,1993
4. ‘Therapeutic exercise and self-correction programs',;Carrière,1996
5. The Swiss Ball: Theory, basic exercises and clinical applications;Carrière,1998