Persistent identifier https://phaidra.univie.ac.at/o:1710473
Handle https://hdl.handle.net/11353/10.1710473
URI https://valep.vc.univie.ac.at/virtualarchive/public/Carnap_to_Felix_Meiner_Meiner_Verlag_1962-03-28_L_Copy/dv:940501