Persistent identifier https://phaidra.univie.ac.at/o:1708326
Handle https://hdl.handle.net/11353/10.1708326
URI https://valep.vc.univie.ac.at/virtualarchive/public/Ina_Carnap_to_Nagel_Edith_Nagel_1938-09-16_L_Copy/dv:985673