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Submitted on: 20 October 2001.
Revised on: 17 January 2002.
Accepted on: 29 January 2002.
___________________JOURNAL OF MICROENCAPSULATION---TAYLOR & FRANCIS LTD
Submitted on: 04 December 2000.
Revised on: 04 January 2001.
Accepted on: 07 February 2001.
___________________JOURNAL OF MICROENCAPSULATION---TAYLOR & FRANCIS LTD
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