HD 12/12/18. Blue in Sherpa, Author's Pre-print: cross author cannot archive pre-print (ie pre-refereeing) Author's Post-print: green tick author can archive post-print (ie final draft post-refereeing) Publisher's Version/PDF: cross author cannot archive publisher's version/PDF General Conditions: Publisher's version/PDF cannot be used On author's personal website immediately On non-commercial open access repository after 12 MTHS EMBARGO, Accepted v requested (Vasiljevic) LL 14/12/18