Submitted on: 13 October 2007.
Revised on: 27 January 2008.
Accepted on: 12 February 2008.
___________________ADVANCED ROBOTICS---TAYLOR & FRANCIS LTD
Submitted on: 30 June 2013.
Revised on: 28 August 2013.
Accepted on: 11 September 2013.
___________________ADVANCED ROBOTICS---TAYLOR & FRANCIS LTD
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Submitted on: 24 July 2007.
Revised on: 12 October 2007.
Accepted on: 26 November 2007.
___________________ADVANCED ROBOTICS---TAYLOR & FRANCIS LTD
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