o:1527799
o:1527802
o:1722143
Persistent identifier https://phaidra.univie.ac.at/o:1527798
Handle https://hdl.handle.net/11353/10.1527798
URI https://valep.vc.univie.ac.at/virtualarchive/public/Wittgenstein_to_Schlick_1932-08-08_L/d:808330