MA 19/9/17. --
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: 	

    On author's personal website, non-commercial subject repositories, institutional repository and non-commercial open access repositories
    Publisher's version/PDF may be used
    Published source must be acknowledged with copyright notice as displayed in original publication
    Must link to publisher version
    Publisher's version/PDF must be clearly identified as the definitive version of record. 13.3.18-mm