Letter / Issued Document - Letter
Persistent identifier https://phaidra.univie.ac.at/o:1842634
Handle https://hdl.handle.net/11353/10.1842634
URI https://valep.vc.univie.ac.at/virtualarchive/public/Schilpp_Philipp_Frank_to_Feigl_Carnap_Schilpp_1953-12-03_1953-12-01_L/d:950703