ORIGINAL
Persistent identifier https://phaidra.univie.ac.at/o:1718084
Handle https://hdl.handle.net/11353/10.1718084
URI https://valep.vc.univie.ac.at/virtualarchive/public/Erna_Ungersbck_Springer-Verlag_to_Carnap_1970-02-06_L_Original/dv:939857