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Submitted on: 17 October 2009.
Revised on: 11 February 2010.
Accepted on: 05 April 2010.
___________________Coatings---MDPI
Submitted on: 12 March 2007.
Revised on: 13 June 2007.
Accepted on: 20 July 2007.
___________________Coatings---MDPI
Submitted on: 25 March 2001.
Revised on: 18 June 2001.
Accepted on: 10 July 2001.
___________________Coatings---MDPI
Submitted on: 02 July 1999.
Revised on: 31 July 1999.
Accepted on: 17 August 1999.
___________________Coatings---MDPI
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