1970. Letter (page 1/7) from Robert Filliou to Georg Jappe. Ref. The Vocational Game. Strategy: Get Arts.
1976. Catalogue. Page 25/29. RDG 10th Anniversary Exhibition. Ten-year record of the gallery's activities 1966-1976.
1972. Lady Alice (Zbigniew Bednarczyk) and the Child, Tadzio (Maria Stangret-Kantor). 'The Water Hen', Forrest Hill Poorhouse.