Published paper is in RQF external hard drive pt.sta. added ResPubID from a dup 21/1/09. 28.06.11-MMM. Green in Sherpa: author can archive pre-print (ie pre-refereeing), author can archive post-print (ie final draft post-refereeing), 7.6.21-MMM. Supporting documentation added to dark upload - HD 27/10/17 Metadata revised, LL 19/6/2020. -- Submission & Permission Form added to dark archive, 29.6.2020-MMM