category c1 Refereed Journal Article pt.7/9/12; Author - Prof. Peng Shi signed VUIR pt.5/9/12  LL 12.3.13 ID 23427 duplicate deleted, Green in Sherpa: Author's Pre-print: author can archive pre-print (ie pre-refereeing) Author's Post-print: author can archive post-print (ie final draft post-refereeing) Publisher's Version/PDF: author cannot archive publisher's version/PDF LL 28.4.14 & 19.8.14-MMM, Requested (Peng) Accepted v. & Permission, Aug 2014--MMM