@conference{UBHD-1072001, organization={Museum am Ostwall}, title={Marks on a canvas}, subtitle={Patrick Caulfield, Bernard Cohen, David Hockney, John Hoyland, Paul Huxley, Allen Jones, Mark Lancaster, Jeremy Moon, Bridget Riley, Richard Smith, John Walker ; 18. Mai - 13. Juli 1969}, publisher={Cruewell}, address={Dortmund}, year={1969}, pages={108 S.}, language={eng and ger}, note={Text dt. und engl.}, library={UB [Signatur: 73 B 798] ; KU [Signatur: K V Do 552]}, }