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Submitted on: 26 December 2007.
Revised on: 21 January 2008.
Accepted on: 08 February 2008.
___________________JOURNAL OF POROUS MATERIALS---SPRINGER
Submitted on: 12 August 2014.
Revised on: 09 November 2014.
Accepted on: 01 January 2015.
___________________JOURNAL OF POROUS MATERIALS---SPRINGER
Submitted on: 06 March 1999.
Revised on: 14 May 1999.
Accepted on: 29 June 1999.
___________________JOURNAL OF POROUS MATERIALS---SPRINGER
Submitted on: 09 February 1999.
Revised on: 09 May 1999.
Accepted on: 29 June 1999.
___________________JOURNAL OF POROUS MATERIALS---SPRINGER