ORIGINAL
Persistent identifier https://phaidra.univie.ac.at/o:1715098
Handle https://hdl.handle.net/11353/10.1715098
URI https://valep.vc.univie.ac.at/virtualarchive/public/Gertrud_Zetkin_Konstantin_Zetkin_to_Carnap_1964-11-17_L_Original/dv:955027