74747document33992Decl_IS_Askins10EngD_v2.pdfapplication/pdfb7d064fe7b03ff17f228b7fe4a8f1710MD51272922014-01-29 09:18:16http://etheses.bham.ac.uk//id/eprint/1271/6/Decl_IS_Askins10EngD_v2.pdf