Letter / Issued Document - Letter
o:1529274
Persistent identifier https://phaidra.univie.ac.at/o:1529273
Handle https://hdl.handle.net/11353/10.1529273
URI https://valep.vc.univie.ac.at/virtualarchive/public/Carnap_to_Feigl_1969-10-09_L/d:848976