28324document16478Decl_IS_Hackett_11_PhD.pdfapplication/pdfeb03917ae8ced7d2b8dd6e5d1eec2785MD55258292011-11-23 14:43:08http://etheses.bham.ac.uk//id/eprint/3001/2/Decl_IS_Hackett_11_PhD.pdf