203960document74099isprs-archives-XLI-B8-1371-2016.pdfapplication/pdf4ff2687ded289fd477fdea7952458d09MD592175172016-11-18 10:08:53https://pure.iiasa.ac.at/id/eprint/13962/1/isprs-archives-XLI-B8-1371-2016.pdf