?url_ver=Z39.88-2004&rft_id=doi%3A10.5194%2Fbg-2016-527&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Folberth%2C+C.&rft.aulast=Folberth&rft.aufirst=C.&rft.date=20+December+2016&rft.issn=1810-6285&rft.atitle=Uncertainties+in+global+crop+model+frameworks%3A+effects+of+cultivar+distribution%2C+crop+management+and+soil+handling+on+crop+yield+estimates&rft.title=Biogeosciences+Discussions&rft.pages=1-30&rft.genre=article