Submitted on: 23 May 2000.
Revised on: 23 August 2000.
Accepted on: 03 October 2000.
___________________JOURNAL OF PURE AND APPLIED ALGEBRA
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Submitted on: 14 August 2021.
Revised on: 24 October 2021.
Accepted on: 16 November 2021.
___________________JOURNAL OF PURE AND APPLIED ALGEBRA
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Submitted on: 06 October 2024.
Revised on: 28 November 2024.
Accepted on: 21 December 2024.
___________________JOURNAL OF PURE AND APPLIED ALGEBRA
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Submitted on: 06 September 2002.
Revised on: 17 October 2002.
Accepted on: 26 November 2002.
___________________JOURNAL OF PURE AND APPLIED ALGEBRA
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