?url_ver=Z39.88-2004&rft_id=10.1080%2F10400435.2012.659326&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Cooper%2C+RA&rft.aulast=Cooper&rft.aufirst=RA&rft.issue=2&rft.volume=24&rft.date=1+June+2012&rft.issn=1040-0435&rft.atitle=Effects+of+cross+slopes+and+varying+surface+characteristics+on+the+mobility+of+manual+wheelchair+users&rft.title=Assistive+Technology&rft.pages=102+-+109&rft.genre=article