Blue in Sherpa. Author's Pre-print: author cannot 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. 3/7/14 HD. Requested (Max) Accepted v. & Permission, 13.8.14-MMM. Max does not have file 25.9.14-MMM