Heinrich Kühn the perfect photograph ; [in conjunction with the exhibition.] - Mahler, Astrid; Faber, Monika; Kühn, Heinrich; Albertina <Wien>; Albertina <Wien> 2010-06-11/2010-09-12; Museum of Fine Arts <Houston, Tex.> 2011-03.06/2011-05-30; Musée national de l'Orangerie <Paris> 2010-10-19/2011-01-23 (Ostfildern : Hatje Cantz, 2010)