c1 Refereed Journal Article. 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   ---MA 21/1/14 & 10.9.14-MMM, Requested (Todor) Accepted v & Permission 10.9.14-MMM