o:1712742
Persistent identifier https://phaidra.univie.ac.at/o:1712741
Handle https://hdl.handle.net/11353/10.1712741
URI https://valep.vc.univie.ac.at/virtualarchive/public/Carnap_to_Albert_C_Spaulding_NSF_1961-12-05_L/d:958068