LL 20.4.16. -- 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 can archive publisher's version/PDF General Conditions: Publisher's version/PDF may be used On author's personal website On author or institutional server / repository. -- 29.4.16--MMM