Pictures, puzzles, and paradigms
Philosophia Scientiae, Manière de faire les mondes. Une conférence avec et sur Nelson Googman, Tome 2. Actes du colloque international Nelson Goodman. Pont-à-Mousson 1997, Tome 2 (1997) no. 2, pp. 231-242. 
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Schwartz, Robert. Pictures, puzzles, and paradigms. Philosophia Scientiae, Manière de faire les mondes. Une conférence avec et sur Nelson Googman, Tome 2. Actes du colloque international Nelson Goodman. Pont-à-Mousson 1997, Tome 2 (1997) no. 2, pp. 231-242. http://archive.numdam.org/item/PHSC_1997__2_2_231_0/

Gombrich, E. H. 1972 The 'What' and the 'How': Perspective representation and the phenomenal world, in : R. Rudner & I. Scheffler (Eds.), Logic and art, Indianapolis : Bobbs-Merrill, 129-149.

Goodman, Nelson 1960 The way the world is, Review of Metaphysics, 14, 48-56.

Goodman, Nelson 1968 Languages of art, Indianapolis : Bobbs-Merrill.

Schwartz, Robert 1994 Vision: Variations on some Berkeleian themes, Oxford : Blackwell Publishers.