?url_ver=Z39.88-2004&rft_id=10.1080%2F10400435.2008.10131933&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=20&rft.date=30+June+2008&rft.issn=1040-0435&rft.atitle=Trends+and+issues+in+wheelchair+technologies&rft.title=Assistive+Technology&rft.pages=61+-+72&rft.genre=article