Persistent identifier https://phaidra.univie.ac.at/o:1705262
Handle https://hdl.handle.net/11353/10.1705262
URI https://valep.vc.univie.ac.at/virtualarchive/public/Carnap_Agnes_Kaufmann_Carnap_to_Anna_Carnap_1914-11-14_L_Original/dv:985844