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PII: S0720-048X(03)00008-1
doi:10.1016/S0720-048X(03)00008-1
© 2003 Elsevier Ireland Ltd. All rights reserved.
PII: S0720-048X(03)00008-1
doi:10.1016/S0720-048X(03)00008-1
© 2003 Elsevier Ireland Ltd. All rights reserved.