170661document62270art%3A10.1007%2Fs13753-016-0086-5.pdfapplication/pdf85d5bb4769cbb2ed840514fa427cc3f1MD554728192016-06-20 10:58:29https://pure.iiasa.ac.at/id/eprint/13299/1/art%253A10.1007%252Fs13753-016-0086-5.pdf