Submitted on: 12 October 2006.
Revised on: 04 February 2007.
Accepted on: 04 April 2007.
___________________Journal of Applied Mechanics and Technical Physics
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Submitted on: 08 June 1999.
Revised on: 23 September 1999.
Accepted on: 21 October 1999.
___________________Journal of Applied Mechanics and Technical Physics
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Submitted on: 05 November 2017.
Revised on: 28 December 2017.
Accepted on: 09 February 2018.
___________________Journal of Applied Mechanics and Technical Physics
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Submitted on: 05 September 2005.
Revised on: 06 October 2005.
Accepted on: 12 November 2005.
___________________Journal of Applied Mechanics and Technical Physics
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Submitted on: 19 July 2002.
Revised on: 08 September 2002.
Accepted on: 19 September 2002.
___________________Journal of Applied Mechanics and Technical Physics