1. Logical foundations of probability;CARNAP,1950
2. CARNAP, R. and Y. BAR-HILLEL, 1952, An outline of a theory of semantic information, Techn. Report No. 247, Massachusetts Institute of Technology, Research Laboratory of Electronics; reprinted in Y. Bar-Hillel, 1964, Language and information (Addison-Wesley, Reading, Mass.) pp. 221–274
3. Confirming power of observations for decisions among hypotheses (I);FINCH;Philosophy of Science,1960
4. FOSTER, M. H. and M. L. Martin (eds.), 1966, Probability, confirmation and simplicity (The Odyssey Press, New York)
5. Inductive inconsistencies;HEMPEL;Synthese,1960