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 |  | Maritime Newsletter, Vol.xxvii, Aug-Oct 1999 |
| | Maritime Newsletter, Vol.xxiii, Sep-Dec 2001 |
| | Maritime Economics and Logistics. Vol.11No.4, Dec 2009 |
| | Maritime Economics and Logistics. Vol.3No.3, Sep 2009 |
| | Maritime Economics and Logistics. Vol.11No.2, Jun 2009 |
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