o:1684450
Persistent identifier https://phaidra.univie.ac.at/o:1684449
Handle https://hdl.handle.net/11353/10.1684449
URI https://valep.vc.univie.ac.at/virtualarchive/public/Institute_for_the_Unity_of_Science_Neurath_to_Manuel_J_Andrade_1938-02-09_L/d:951093