2026-08-30T20:25:13Zhttp://theses.ncl.ac.uk/oai/requestNewcastle University eTheseshttp://theses.ncl.ac.uk/oai/request2.0lib-web@nclac.uk2008-09-18T12:48:45ZtransientYYYY-MM-DDThh:mm:ssZ oai localhost : oai:localhost:10443.1/1234