?url_ver=Z39.88-2004&rft_id=10.1016%2Fj.clay.2013.07.016&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Elkhalifah&rft.au=Elkhalifah%2C+A.E.I.&rft.aufirst=A.E.I.&rft.date=2013&rft.title=Applied+Clay+Science&rft.atitle=Effects+of+exchanged+ammonium+cations+on+structure+characteristics+and+CO2+adsorption+capacities+of+bentonite+clay&rft.pages=391-398&rft.volume=83-84&rft.issn=01691317&rft.genre=article