TY - JOUR AU - Fenglei Tian AU - Xiaoping Qian AU - John Villarrubia C2 - Ultramicroscopy DA - 2008-12-01 00:12:00 LA - en M1 - 109 PB - Ultramicroscopy PY - 2008 TI - Blind estimation of general tip shape in AFM imaging ER -