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Submitted on: 14 June 2001.
Revised on: 04 July 2001.
Accepted on: 09 July 2001.
Kodai Mathematical Journal
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Submitted on: 13 July 2016.
Revised on: 27 July 2016.
Accepted on: 10 August 2016.
Kodai Mathematical Journal---KINOKUNIYA CO LTD
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Submitted on: 26 July 2011.
Revised on: 07 September 2011.
Accepted on: 29 September 2011.
Kodai Mathematical Journal
Submitted on: 07 July 2023.
Revised on: 09 August 2023.
Accepted on: 15 August 2023.
Kodai Mathematical Journal---KINOKUNIYA CO LTD
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