Sammlung Hoffmann in Berlin – nur noch kurze Zeit - Was kann Kunst
From 1881 to today | van Laack
Erika Hoffmann: Zuhause in der Sammlung | ArtBerlin.de
50 Kleider? [Fifty clothing renderings on 82 plates presented to Rolf Hoffmann] by Hoffmann-Koenig, Erika (editor) and Andy Warhol et al. (illustrators): Manuscript / Paper Collectible | Wittenborn Art Books
Erika Hoffmann-Koenige: Collecting Art in the Post-war Germany – InitiArt Magazine
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Erika Hoffmann-Koenige: Collecting Art in the Post-war Germany – InitiArt Magazine
Erika Hoffmann: Zuhause in der Sammlung | ArtBerlin.de