WIMP-nucleon cross-section results from the second science run of ZEPLIN-III - Akimov,DY; Araújo,HM; Barnes,EJ; Belov,VA; Bewick,A; Burenkov,AA; Chepel,V; Currie,A; DeViveiros,L; Edwards,B; Ghag,C; Hollingsworth,A; et al. (Physics Letters B, 2012)