o:1684566
o:1701686
Persistent identifier https://phaidra.univie.ac.at/o:1684565
Handle https://hdl.handle.net/11353/10.1684565
URI https://valep.vc.univie.ac.at/virtualarchive/public/Carnap_to_Thomas_S_Kuhn_Morris_1962-04-28_L/d:952517