Synthese: Inter. Quar. For Logical And Psychological Study Of Foundations Of Sci. - Dordrecht(Holland) D. Reidel Pub. Comp. 1962 - 344 - Nos.1-4 . Subjects--Topical Terms: AOR1m5962:N49 Dewey Class. No.: AOR1m5962:N49 / H9.13