?url_ver=Z39.88-2004&rft_id=10.1109%2FSENNANO51750.2021.9642405&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Nawi%2C+I.M.&rft.aulast=Nawi&rft.aufirst=I.M.&rft.date=2021&rft.title=Portable+Small+Items+Stair-Lift+(Detachable)&rft.isbn=9781665404396&rft.genre=proceeding