ORIGINAL
Persistent identifier https://phaidra.univie.ac.at/o:1717942
Handle https://hdl.handle.net/11353/10.1717942
URI https://valep.vc.univie.ac.at/virtualarchive/public/Springer-Verlag_W_Schwabl_to_Carnap_1969-07-24_L_Original/dv:939922