HD 11/8/17. --
Yellow in Sherpa: Author's Pre-print: 	green tick  author can archive pre-print (ie pre-refereeing)
Author's Post-print: 	grey tick  subject to Restrictions below, author can archive post-print (ie final draft post-refereeing)
Restrictions: 	

    18 months embargo

Publisher's Version/PDF: 	cross  author cannot archive publisher's version/PDF
General Conditions: On author's personal website or institutional repository
    Non-commercial
    Publisher's version/PDF cannot be used
    Must link to publisher's website, and when available to final published version on publisher's website
    Pre-print and Post-print must not be made available for systematic distribution by any third party, including email lists and databases
    Pre-print and Post-print must be accompanied in full text file or metadata with set statements (see link below, section on self-archiving). -- 
not requested 2013 publication, 25.8.17-MMM