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Submitted on: 31 October 2007.
Revised on: 08 December 2007.
Accepted on: 20 December 2007.
NOTES AND QUERIES---OXFORD UNIV PRESS
Submitted on: 20 September 2011.
Revised on: 18 October 2011.
Accepted on: 03 November 2011.
NOTES AND QUERIES
Submitted on: 05 April 2005.
Revised on: 10 May 2005.
Accepted on: 20 May 2005.
NOTES AND QUERIES---OXFORD UNIV PRESS
Submitted on: 25 June 2017.
Revised on: 23 July 2017.
Accepted on: 14 August 2017.
NOTES AND QUERIES
Submitted on: 20 January 2021.
Revised on: 25 February 2021.
Accepted on: 10 March 2021.
NOTES AND QUERIES
Submitted on: 17 February 2003.
Revised on: 26 February 2003.
Accepted on: 24 March 2003.
NOTES AND QUERIES---OXFORD UNIV PRESS
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http://reply.papertrans.cn/3/233/23267/23267-29.png
Submitted on: 12 October 2004.
Revised on: 25 November 2004.
Accepted on: 15 December 2004.
NOTES AND QUERIES---OXFORD UNIV PRESS