Research in the context of the "Russian Avantgarde at the Museum Ludwig“ exhibition

• English: Open Letter to the Director of Museum Ludwig
• Deutsch: Offener Brief an den Direktor des Museum Ludwig
• Deutsch: Dienstaufsichtsbeschwerde / Verhalten Direktion Museum Ludwig
• English: Video Interview Prof. Poldi “With a peer-review process the Museum Ludwig Catalogue would have been very different”
• English: Assessment, a technical review of the Museum Ludwig Publication by Prof. Poldi
• English: Accusatory Ineptitude: Rodchenko “Black on Black” 1918
• Deutsch: Unterstellung in Unkenntnis: Rodtschenko „Schwarz auf Schwarz“, 1918