o:1683832
Persistent identifier https://phaidra.univie.ac.at/o:1683831
Handle https://hdl.handle.net/11353/10.1683831
URI https://valep.vc.univie.ac.at/virtualarchive/public/University_of_Chicago_Press_Fred_Wieck_to_Carnap_1948-01-14_L/d:951419