category c1 Refereed Journal Article pt.15/6/12. 24/8/12 HD. 
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 (Polman) Accepted version & Permission, 25.3.14-MMM. Received file only, requested permission again 8.4.14-MMM. Permission received, 14.4.14-MMM. Supporting documentation added to dark upload - HD 1/6/18. HERDC documentation added to dark upload - HD 21/5/20