c1 Refereed Journal Article. 21/10/2013 kq. Blue in Sherpa: 
Author's Pre-print: archiving status unclear
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,
Requested (McKenna) Accepted version & permission, 25.3.14-MMM. Received signed permission only, 1.4.14-MMM. Supporting documentation added to dark upload - HD 23/4/18. HERDC documentation added to dark upload - HD 9/6/20