Yellow in Sherpa; pre-print can be archived; post-print cannot be archived; author can archive publisher's version/PDF subject to restrictions: 3 months for STM, 6 months for other titles, except Economics journals which are 12 months; attached copy restricted  lv 11/10/10.  Self-submitted 13.10.10-MMM. Added: category c1 Refereed Journal Article HERDC/ERA 2008/2009 pt.18/9/10 & ResPubID13841 from dup., 5.6.12-MMM. Supporting documentation added to dark upload - HD 25/10/17