Print version published June 2013. 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: •2 years embargo for authors post-print.
 Publisher's Version/PDF:   author cannot archive publisher's version/PDF. 14/5/14 HD.
Requested (Ramon) Accepted v. & permission, 13.6.14-MMM. File loaded, restricted while waiting for permission, 1.7.14-MMM. Published version of full-text added to Dark Repository -MA 6/3/18 -Now Green in Sherpa - Author's Pre-print:	green tick  author can 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:	
Pre-print can only be posted prior to acceptance
Pre-print must be accompanied by set statement (see link)
Pre-print must not be replaced with post-print, instead a link to published version with amended set statement should be made
Pre-print on author's personal website, employer website, free public server or pre-prints in subject area
Post-print on institutional repositories or central repositories after 2 years embargo
Publisher's version/PDF cannot be used
Published source must be acknowledged
Must link to publisher version
Set phrase to accompany archived copy (see policy)
Eligible authors may deposit in OpenDepot   --MA 6/3/18