?url_ver=Z39.88-2004&rft_id=10.1145%2F2701126.2701209&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Ahsanullah&rft.aulast=Ahsanullah&rft.isbn=9781450333771&rft.title=Investigation+of+fingertip+contact+area+and+shape+for+precise+target+selection+on+multi-touch+screen&rft.date=2015&rft.genre=proceeding