Bergmann Duo photo1 colour Bergmann Duo March 2011 short bio Bergmann Duo biography March 2011 (482 words) Bergmann Duo photo2 colour Bergmann Duo Logo Bergmann Duo photo 1 high res. Bergmann Duo photo 2 high res. Bergmann Duo photo 3 high res. Bergmann Duo French Biographie October 2011