Submitted on: 19 August 2002.
Revised on: 09 September 2002.
Accepted on: 14 September 2002.
MATHEMATICAL GAZETTE---CAMBRIDGE UNIV PRESS
Submitted on: 14 January 2018.
Revised on: 27 February 2018.
Accepted on: 18 March 2018.
MATHEMATICAL GAZETTE
Submitted on: 24 February 2000.
Revised on: 11 March 2000.
Accepted on: 18 March 2000.
MATHEMATICAL GAZETTE---CAMBRIDGE UNIV PRESS
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Submitted on: 05 November 2003.
Revised on: 03 December 2003.
Accepted on: 18 December 2003.
MATHEMATICAL GAZETTE---CAMBRIDGE UNIV PRESS
Submitted on: 10 November 2022.
Revised on: 12 December 2022.
Accepted on: 31 December 2022.
MATHEMATICAL GAZETTE
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Submitted on: 19 February 2003.
Revised on: 25 March 2003.
Accepted on: 12 April 2003.
MATHEMATICAL GAZETTE---CAMBRIDGE UNIV PRESS
Submitted on: 24 January 2008.
Revised on: 22 February 2008.
Accepted on: 04 March 2008.
MATHEMATICAL GAZETTE