Helmuth Lütjens, Paul Cassirer Amsterdam and Max Beckmann in: “Come on, now buy a Beckmann too!“ Portrait of the Lütjens Family in the Museum Boijmans van Beuningen, Ausstellungskatalog Boijmans van Beuningen, Rotterdam 2011, S. 88-96. Posted Donnerstag, der 11. Mai 2017 by Ehud Neuhaus