LL 22/09/17. --
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 open access repositories
    Publisher's version/PDF may be used
    Creative Commons Attribution License
    Must link to publisher version
    Published source must be acknowledged.  
and CC BY from article: This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. --
(no PDFavailable from website -- ) 29.9.17--mmm -
requested (Thompson), 27.10.17-MMM, recd accepted v, & added 28.1.17-MMM