o:1611506
Persistent identifier https://phaidra.univie.ac.at/o:1611505
Handle https://hdl.handle.net/11353/10.1611505
URI https://valep.vc.univie.ac.at/virtualarchive/public/Carnap_to_Haim_Gaifman_Jeffrey_John_Kemeny_1964-07-26_L/d:903931