Paul Ziff


, 1987, On being an abstract artist, in A. Harrison (ed.), Philosophy and the visual arts, Dordrecht, Springer, pp. 155-166.

, 1979a, Anything viewed, in E. Saarinen, R. Hilpinen, I. Niiniluoto & M. Provence Hintikka (eds.), Essays in honour of Jaakko Hintikka, Dordrecht, Springer, pp. 285-293.