4246document2969SarahBlairReid_PhD_2010_small.pdfapplication/pdfbd0c48664ca6b6aaf1b254022d2099ddMD592952532011-07-19 16:30:39http://etheses.bham.ac.uk//id/eprint/1173/1/SarahBlairReid_PhD_2010_small.pdf