c1 Refereed Journal Article
abstract in pdf copyright. Yellow in Sherpa. TPP 30-10/2013.
Yellow in Sherpa: Author's Pre-print: author can archive pre-print (ie pre-refereeing)
Author's Post-print: subject to Restrictions below, author can archive post-print (ie final draft post-refereeing)
Restrictions: 12 months embargo for scientific, technical or medical journals
2 years embargo for social sciences and humanities journals
Publisher's Version/PDF:  author cannot archive publisher's version/PDF, Requested (McKenna) Accepted version & permission, 25.3.14-MMM. Received signed permission only, (permission indicates the material has not been through formal peer review...& signed by Prof. McKenna), 1.4.14-MMM. Supporting documentation added to dark upload - HD 23/4/18