c1 Refereed Journal Article. GREEN in Sherpa; author can archive pre-print and post-print. But CANNOT archive publisher's version/PDF. 24/5/12 HD. e-mail to Nigel, 25.5.12-MMM, author - Nigel Stepto signed VUIR pt.15/6/12.  Added from dups: ResPubID23492, ResPubID23883 & author - David Bishop signed VUIR pt.15/6/12, 29.8.12-MMM. Listed in McKenna's request to add. Requested (McKenna) accepted v. & permission, 7.5.14-MMM.  Received permission only, 11.6.14-MMM. Supporting documentation added to dark upload - HD 23/4/18. HERDC documentation added to dark upload - HD 21/5/20