1. Braddon-Mitchell, D.: 1988, Explanation: A Causally Constrained Pragmatic Account, unpublished Ph.D. Thesis, Australian National University.
2. Burian, R.: 1986, ?On Conceptual Change in Biology?, in Evolution at the Crossroads, MIT Press, Cambridge, Massachusetts.
3. Chomsky, N.: 1965, Aspects of the Theory of Syntax, MIT Press, Cambridge, Massachusetts.
4. Chomsky, N.: 1980, Rules and Representations, Blackwell, Oxford.
5. Cummins, R.: 1984, The Nature of Psychological Explanation, MIT Press, Cambridge, Massachusetts.