o:1479543
Persistent identifier https://phaidra.univie.ac.at/o:1479542
Handle https://hdl.handle.net/11353/10.1479542
URI https://valep.vc.univie.ac.at/virtualarchive/public/Carnap_Ina_Carnap_to_Diane_Hempel_Hempel_1951-07-20_L/d:847443