"C. Enriquez initiated" LL 24.2.14. Green in Sherpa: 
author can archive pre-print (ie pre-refereeing),
author can archive post-print (ie final draft post-refereeing,
author can archive publisher's version/PDF,
Requested (Duke) accepted or publisher's version & permission, 26.2.14-MMM. Received both 27.2.14-MMM. Supporting documentation added to dark upload - HD 8/11/17