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2. Carnap, R.: 1962, ?The Aim of Inductive Logic?, in E.Nagel, P.Suppes and A.Tarski (eds.), Logic Methodology and Philosophy of Science, Stanford University Press, California.
3. Hilpenen, R.: 1968, Rules of Acceptance and Inductive Logic, North Holland, Amsterdam.
4. Hintikka, J. and Pietarinen, J.: 1966, Semantic Information and Inductive Logic, in J.Hintikka and P.Suppes (eds.), Aspects of Inductive Logic, North Holland, Amsterdam, pp. 96?112.
5. Gaifman, H.: 1985. ?On Inductive Support and Some Recent Tricks?, Erkenntnis 22, 5?21.