Persistent identifier https://phaidra.univie.ac.at/o:1701664
Handle https://hdl.handle.net/11353/10.1701664
URI https://valep.vc.univie.ac.at/virtualarchive/public/pax_forlag_as_Terje_Hoel_to_Carnap_1968-01-23_L_Original/dv:936113