@book {bryson_offnungen._2009, title = {{\"O}ffnungen. Zur Theorie und Geschichte der Zeichnung}, year = {2009}, note = {THE 158}, publisher = {Wilhelm Fink Verlag}, organization = {Wilhelm Fink Verlag}, author = {Bryson, Norman and Boehm, Gottfried and Bach, Friedrich Teja and andere} }