HD 26/6/18. 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: 	

    Author's pre-print on non-peer review servers prior to submission to journal
    Author's pre-prints can be deposited on public repositories as long as accompanied by ACM copyright notice upon transfer of copyright
    Author's Post-print on author's personal website, institutional repository, open access repository, employer's website or funder's mandated repository only
    Non commercial use
    Publisher's version/PDF cannot be used
    Publisher copyright and source must be acknowledged
    Must link to publisher version with statement that this is the definitive version and DOI
    Must state that version on repository is the authors version
    Set statement "© ACM, YYYY. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in PUBLICATION, {VOL#, ISS#, (DATE)} http://doi.acm.org/10.1145/nnnnnn.nnnnnn". Accepted v. requested (Wang) - LL 27/6/18