195680document70705art%3A10.1023%2FA%3A1026631523999.pdfapplication/pdf8b4ab69f22937bb737866dbda2d19739MD5538672016-09-01 14:08:21https://pure.iiasa.ac.at/id/eprint/5997/1/art%253A10.1023%252FA%253A1026631523999.pdf