c1 Refereed Journal Article. Can't verify page range. 7/4/14 HD. Green in Sherpa:   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 can archive publisher's version/PDF 
Requested (Christopher) Permission, 25.8.14-MMM.
Open access journal, 2015-MMM