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Page 1: Some pages of this thesis may have been removed for ...eprints.aston.ac.uk/14859/1/Young1994_AURA.pdf · Some pages of this thesis may have been removed for copyright restrictions..

Some pages of this thesis may have been removed for copyright restrictions.

If you have discovered material in AURA which is unlawful e.g. breaches copyright, (either

yours or that of a third party) or any other law, including but not limited to those relating to

patent, trademark, confidentiality, data protection, obscenity, defamation, libel, then please

read our Takedown Policy and contact the service immediately

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