71092document331911999-4-07_pflug_swietanowski.pdfapplication/pdfd4db43331bb7c9b0b05f1adb244a758fMD528874442016-02-19 15:55:31https://pure.iiasa.ac.at/id/eprint/5678/1/1999-4-07_pflug_swietanowski.pdf