Cited By (since 1996):4 Export Date: 15 May 2014
Source: Scopus. Art. No.: 961.
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 can archive publisher's version/PDF 7/7/14 HD.
Requested (Max) permission, 13.8.14-MMM