?url_ver=Z39.88-2004&rft_id=10.1088%2F1748-9326%2Faa583e&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=H%C3%B6glund-Isaksson%2C+L.&rft.aulast=H%C3%B6glund-Isaksson&rft.aufirst=L.&rft.issue=2&rft.volume=12&rft.date=20+December+2017&rft.issn=1748-9326&rft.atitle=Bottom-up+simulations+of+methane+and+ethane+emissions+from+global+oil+and+gas+systems+1980+to+2012&rft.title=Environmental+Research+Letters&rft.pages=e024007&rft.genre=article