Submitted on: 30 December 2009.
Revised on: 04 April 2010.
Accepted on: 03 June 2010.
___________________Journal of Homotopy and Related Structures
Submitted on: 01 December 2010.
Revised on: 28 February 2011.
Accepted on: 06 April 2011.
___________________Journal of Homotopy and Related Structures
Submitted on: 24 March 2021.
Revised on: 09 May 2021.
Accepted on: 04 June 2021.
___________________Journal of Homotopy and Related Structures
Submitted on: 15 January 2018.
Revised on: 16 February 2018.
Accepted on: 15 April 2018.
___________________Journal of Homotopy and Related Structures
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