Letter / Issued Document - Letter
o:1722669
Persistent identifier https://phaidra.univie.ac.at/o:1530849
Handle https://hdl.handle.net/11353/10.1530849
URI https://valep.vc.univie.ac.at/virtualarchive/public/Carnap_to_Popper_1932-10-28_L/d:871349