LL 26/6/17. --
Blue in Sherpa: Author's Pre-print: 	question mark  archiving status unclear
Author's Post-print: 	green tick  author can archive post-print (ie final draft post-refereeing)
Publisher's Version/PDF: 	green tick  author can archive publisher's version/PDF
General Conditions: 	

    On open access repositories
    Publisher's version/PDF may be used. --
Full-text added 30.6.17-MMM