?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=J&rft.au=van+Wart%2C+J&rft.aulast=van+Wart&rft.atitle=Use+of+agro-climatic+zones+to+upscale+simulated+crop+yield+potential&rft.title=Field+Crops+Research&rft.issn=0378-4290&rft.date=2013&rft.volume=143&rft.pages=44-55&rft.genre=article