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2. International Maritime Organisation. Casualty statistics and investigations: very serious and serious casualties for the year 1999;IMO,1999
3. International Maritime Organisation. Casualty statistics and investigations: Very serious and serious casualties for the year 2000;IMO,2000
4. International Maritime Organisation. Casualty statistics and investigations: very serious and serious casualties for the year 2001;IMO,2001
5. International Maritime Organisation. Casualty statistics and investigations: very serious and serious casualties for the year 2002;IMO,2002