o:1715303
Persistent identifier https://phaidra.univie.ac.at/o:1715302
Handle https://hdl.handle.net/11353/10.1715302
URI https://valep.vc.univie.ac.at/virtualarchive/public/Feigl_Sellars__Keith_Lehrer_to_Carnap_1969-04-07_L/d:955288