o:1708219
Persistent identifier https://phaidra.univie.ac.at/o:1708218
Handle https://hdl.handle.net/11353/10.1708218
URI https://valep.vc.univie.ac.at/virtualarchive/public/Carnap_to_Edith_Nagel_Nagel_1944-02-09_L/d:985721