TY - JOUR AU - Seung AU - Huan Zhang AU - Michael Nosonovsky AU - Koo-hyun Chung C2 - Langmuir DA - 2008-02-05 LA - en M1 - 24 PB - Langmuir PY - 2008 TI - Effects of Contact Geometry Upon Pull-Off Force Measurements With a Colloidal Probe ER -