Full-text added to Dark Repository for ERA MA 12/3/18. 
Open Access Policy: 'This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge.'
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:green tick  author can archive publisher's version/PDF   General Conditions:	Pre-print must be removed and replaced with a link to the published version Published source must be acknowledged  On author's personal website or institutional website  Publisher's version/PDF may be used.  MA 12/3/18