@misc{_[Hahn,, address={Breslau}, howpublished={online}, language={ger}, title={[Hahn, Bernhard sen.]}, keywords={18thC., 19thC., Wrocław, Jesuit schools, gymnasium, anniversary, occasional prints, albums, teachers, musician, photography, German photography, photographers in Wroclaw, photographic print (black and white), salt print, painting, oil painting, frames, photographic reproduction of painting, portrait, man, bust, men's clothing, frock coat, hairstyle, Hahn, Bernhard (1780-1852)}, }