268442document92540Graven_GBC_SSP_maintext_rev_200911.pdfapplication/pdf059c5533a58a3cf10cc21bb49b899d3dMD513482772020-12-10 07:46:22https://pure.iiasa.ac.at/id/eprint/16895/1/Graven_GBC_SSP_maintext_rev_200911.pdf