David Röell Prize 1979 : John HabrakenAn essay on Piet ZwartConstant, an illustration of freedomThe David Roëll Prize 1987 : presentation of the David Roëll Prize to A.D. Copier at the Rijksmuseum in AmsterdamLies CosijnCouzijn : presentation of the David Röell Prize to Wessel Couzijn at the Rijksmuseum in Amsterdam, November 10, 1966Lucassen's art : new, romantic and never boringPresentation of the David Röell Prize to Piet Zwart