Submitted on: 18 September 2013.
Revised on: 30 October 2013.
Accepted on: 05 November 2013.
Turkish Journal of Mathematics
Submitted on: 09 July 2010.
Revised on: 04 August 2010.
Accepted on: 25 August 2010.
Turkish Journal of Mathematics
Submitted on: 03 June 2001.
Revised on: 08 July 2001.
Accepted on: 17 July 2001.
Turkish Journal of Mathematics
Submitted on: 12 November 2008.
Revised on: 16 December 2008.
Accepted on: 23 December 2008.
Turkish Journal of Mathematics
Submitted on: 17 March 2010.
Revised on: 14 April 2010.
Accepted on: 29 April 2010.
Turkish Journal of Mathematics
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Submitted on: 01 January 2017.
Revised on: 12 February 2017.
Accepted on: 22 February 2017.
Turkish Journal of Mathematics
Submitted on: 27 September 2008.
Revised on: 24 October 2008.
Accepted on: 09 November 2008.
Turkish Journal of Mathematics
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