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Submitted on: 16 January 2009.
Revised on: 14 April 2009.
Accepted on: 10 June 2009.
___________________JOURNAL OF SANDWICH STRUCTURES & MATERIALS
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Submitted on: 11 July 2019.
Revised on: 12 September 2019.
Accepted on: 21 October 2019.
___________________JOURNAL OF SANDWICH STRUCTURES & MATERIALS
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