Yellow in Sherpa; Author's Pre-print: author can archive pre-print (ie pre-refereeing)  Author's Post-print: subject to Restrictions below, author can archive post-print (ie final draft post-refereeing)  Restrictions: 
12 months embargo for scientific, technical or medical journals   
2 years embargo for social sciences and humanities journals
Publisher's Version/PDF: author cannot archive publisher's version/PDF  --MA 3/4/14. Requested (Corcoran) Accepted Version & permission, 10.4.14-MMM. Received both, 16.4.14-MMM. Supporting documentation added to dark upload - HD 25/10/17