?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=R+M&rft.au=Rees%2C+R+M&rft.aulast=Rees&rft.atitle=Nitrous+oxide+emissions+from+European+agriculture+%E2%80%93+an+analysis+of+variability+and+drivers+of+emissions+from+field+experiments&rft.title=Biogeosciences+(BG)&rft.issn=1726-4170&rft.date=2013&rft.volume=10&rft.pages=2671-2682&rft.genre=article