c1 Refereed Journal Article, LL 21.7.14. Green in Sherpa: Author's Pre-print: author can archive pre-print (ie pre-refereeing) Author's Post-print: author can archive post-print (ie final draft post-refereeing) Publisher's Version/PDF: author cannot archive publisher's version/PDF General Conditions: •Some individual journals may have policies prohibiting pre-print archiving •On author's personal website or departmental website immediately •On institutional repository or subject-based repository after a 18 months embargo ... Requested (Gunawardana) Accepted v & Permission 24.9.14-MMM. -