1. Giere, R.: 1973, ?Objective Single Case Probabilities and the Foundations of Statistics?, in P.Suppes et al. (eds.), Logic, Methodology and Philosophy of Science, North Holland, Amsterdam, pp. 467?483.
2. Popper, K. R.: 1957, ?The Propensity Interpretation of the Calculus of Probability, and the Quantum Theory?, in S.Körner (ed.), Observation and Interpretation in the Philosophy of Physics, Dover, New York, pp. 65?70.
3. Salmon, W. C.: 1979, ?Propensities: A Discussion Review of D. H. Mellor, The Matter of Chance?, Erkenntnis 14, 182?216.