Submitted on: 01 April 2000.
Revised on: 12 April 2000.
Accepted on: 24 April 2000.
VIRTUAL REALITY---SPRINGER LONDON LTD
Submitted on: 12 September 2013.
Revised on: 13 October 2013.
Accepted on: 05 November 2013.
VIRTUAL REALITY
Submitted on: 26 November 2006.
Revised on: 06 December 2006.
Accepted on: 01 January 2007.
VIRTUAL REALITY
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