Submitted on: 16 August 2002.
Revised on: 18 October 2002.
Accepted on: 17 December 2002.
___________________Acta Borealia---ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
Submitted on: 30 July 2003.
Revised on: 17 October 2003.
Accepted on: 06 November 2003.
___________________Acta Borealia---ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
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Submitted on: 13 December 2001.
Revised on: 11 April 2002.
Accepted on: 30 April 2002.
___________________Acta Borealia---ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
Submitted on: 28 September 2001.
Revised on: 11 January 2002.
Accepted on: 18 February 2002.
___________________Acta Borealia---ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
http://reply.papertrans.cn/1/3/281/281-26.png
Submitted on: 18 August 2009.
Revised on: 14 December 2009.
Accepted on: 31 December 2009.
___________________Acta Borealia---ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
Submitted on: 22 June 2015.
Revised on: 01 August 2015.
Accepted on: 09 September 2015.
___________________Acta Borealia---ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
http://reply.papertrans.cn/1/3/281/281-29.png
Submitted on: 13 September 2010.
Revised on: 25 October 2010.
Accepted on: 10 December 2010.
___________________Acta Borealia---ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD