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An Outline of a Theory of Semantic Information. Technical Report No. 247, MIT 1952. Repr. in: Y. Bar-Hillel: Language and Information, Addison-Wesley, Reading, Mass. 1964.
MR 0058545
[3] C. G. Hempel: Aspects of Scientific Explanation. The Free Press, New York 1965.
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The Varieties of Information and Scientific Explanation. In: Rootselaar, Steal: Logic, Methodology and Philosophy of Sciences. North-Holland Publ. Comp., Amsterdam 1968.
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[8] Wolfgang Stegmüller: Wissenschaftliche Erklärung und Begründung. Springer, Berlin-Heidelberg-New York 1969.