Persistent identifier https://phaidra.univie.ac.at/o:1707886
Handle https://hdl.handle.net/11353/10.1707886
URI https://valep.vc.univie.ac.at/virtualarchive/public/Maue_Gramm_to_Carnap_1965-05-07_1965-05-02_L_Copy/dv:982358