?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=D+R&rft.au=Keeney%2C+D+R&rft.aulast=Keeney&rft.atitle=Carbon+dioxide+concentration+in+soil.+Effects+on+nitrification%2C+denitrification+and+associated+nitrous+oxide+production&rft.title=Soil+Biology+and+Biochemistry&rft.issn=0038-0717&rft.date=1985&rft.volume=17&rft.pages=571-573&rft.issue=4&rft.genre=article