Submitted on: 14 October 2010.
Revised on: 01 December 2010.
Accepted on: 18 December 2010.
___________________IEEE ROBOTICS & AUTOMATION MAGAZINE
Submitted on: 08 January 2013.
Revised on: 17 April 2013.
Accepted on: 16 May 2013.
___________________IEEE ROBOTICS & AUTOMATION MAGAZINE
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Submitted on: 26 March 2013.
Revised on: 17 June 2013.
Accepted on: 04 August 2013.
___________________IEEE ROBOTICS & AUTOMATION MAGAZINE
Submitted on: 23 January 2012.
Revised on: 22 March 2012.
Accepted on: 15 April 2012.
___________________IEEE ROBOTICS & AUTOMATION MAGAZINE
Submitted on: 27 September 2005.
Revised on: 09 January 2006.
Accepted on: 10 March 2006.
___________________IEEE ROBOTICS & AUTOMATION MAGAZINE
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