?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Van+Bussel%2C+L+G+J&rft.aufirst=L+G+J&rft.aulast=Van+Bussel&rft.issn=0378-4290&rft.pages=98-108&rft.atitle=From+field+to+atlas%3A+Upscaling+of+location-specific+yield+gap+estimates&rft.volume=177&rft.title=Field+Crops+Research&rft.date=2015&rft.genre=article