5677document3910Decl_IS_Davies_Dita_11_PhD.pdfapplication/pdf56233e40dc27c1331f8c1f6af7451b51MD54707582011-07-19 16:40:59http://etheses.bham.ac.uk//id/eprint/1742/2/Decl_IS_Davies_Dita_11_PhD.pdf