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Submitted on: 28 January 2002.
Revised on: 07 March 2002.
Accepted on: 15 March 2002.
Polymer-Plastics Technology and Materials
Submitted on: 06 November 2002.
Revised on: 11 December 2002.
Accepted on: 20 December 2002.
Polymer-Plastics Technology and Materials
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Submitted on: 19 October 2012.
Revised on: 22 November 2012.
Accepted on: 12 December 2012.
Polymer-Plastics Technology and Materials
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