o:1444315
Persistent identifier https://phaidra.univie.ac.at/o:1444314
Handle https://hdl.handle.net/11353/10.1444314
URI https://valep.vc.univie.ac.at/virtualarchive/public/Folder_25_Assigning_Probabilities_to_Open_and_Closed_Formulas_Fenstad/a:725301