COPY
Persistent identifier https://phaidra.univie.ac.at/o:1529681
Handle https://hdl.handle.net/11353/10.1529681
URI https://valep.vc.univie.ac.at/virtualarchive/public/Hempel_Rudolf_Carnap_Formalization_of_Logic_1943-08-14_M_Copy/dv:848356