Submitted on: 20 November 2006.
Revised on: 29 December 2006.
Accepted on: 09 February 2007.
___________________ALGEBRA UNIVERSALIS---SPRINGER BASEL AG
Submitted on: 15 August 2005.
Revised on: 08 November 2005.
Accepted on: 03 January 2006.
___________________ALGEBRA UNIVERSALIS---SPRINGER BASEL AG
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Submitted on: 24 October 2011.
Revised on: 07 December 2011.
Accepted on: 05 February 2012.
___________________ALGEBRA UNIVERSALIS---SPRINGER BASEL AG
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Submitted on: 08 August 2001.
Revised on: 28 November 2001.
Accepted on: 02 January 2002.
___________________ALGEBRA UNIVERSALIS---SPRINGER BASEL AG
Submitted on: 27 April 2020.
Revised on: 16 August 2020.
Accepted on: 07 September 2020.
___________________ALGEBRA UNIVERSALIS---SPRINGER BASEL AG
Submitted on: 12 July 2003.
Revised on: 02 September 2003.
Accepted on: 04 October 2003.
___________________ALGEBRA UNIVERSALIS---SPRINGER BASEL AG
Submitted on: 13 October 2003.
Revised on: 25 January 2004.
Accepted on: 08 March 2004.
___________________ALGEBRA UNIVERSALIS---SPRINGER BASEL AG