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Submitted on: 19 November 2007.
Revised on: 25 December 2007.
Accepted on: 14 January 2008.
Journal on Multimodal User Interfaces
Submitted on: 25 May 1999.
Revised on: 02 June 1999.
Accepted on: 08 June 1999.
Journal on Multimodal User Interfaces
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Submitted on: 06 August 2009.
Revised on: 14 August 2009.
Accepted on: 31 August 2009.
Journal on Multimodal User Interfaces
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