Marwan. Marwan, 1984? p. 7 (Robert Kudielka)

LC data base, 8-8-84 (hdg.: Kudielka, Robert)

Bignia Corradini, 2000: next to last p. (Robert Kudielka; b. 1945)

Bridget Riley, 2014: CIP t.p. (Robert Kudielka) data view (b. Aug. 30, 1945)