LoCuSS: first results from strong-lensing analysis of 20 massive galaxy clusters at z=0.2

J Richard, Graham Smith, JP Kneib, RS Ellis, Alastair Sanderson, L Pei, TA Targett, DJ Sand, AM Swinbank, H Dannerbauer, P Mazzotta, M Limousin, E Egami, E Jullo, V Hamilton-Morris, SM Moran