Persistent identifier https://phaidra.univie.ac.at/o:1683955
Handle https://hdl.handle.net/11353/10.1683955
URI https://valep.vc.univie.ac.at/virtualarchive/public/University_of_Chicago_Press_Mary_D_Alexander_to_Carnap_1951-04-25_L_Copy/dv:951476