Submitted on: 17 July 1999.
Revised on: 06 August 1999.
Accepted on: 25 August 1999.
Migration Studies---OXFORD UNIV PRESS
Submitted on: 11 June 2010.
Revised on: 21 July 2010.
Accepted on: 31 July 2010.
Migration Studies---OXFORD UNIV PRESS
Submitted on: 06 November 2001.
Revised on: 17 November 2001.
Accepted on: 09 December 2001.
Migration Studies
Submitted on: 10 October 2015.
Revised on: 17 November 2015.
Accepted on: 25 November 2015.
Migration Studies---OXFORD UNIV PRESS
Submitted on: 28 April 2004.
Revised on: 02 June 2004.
Accepted on: 09 June 2004.
Migration Studies
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http://reply.papertrans.cn/3/220/21996/21996-27.png
Submitted on: 27 February 2012.
Revised on: 30 March 2012.
Accepted on: 10 April 2012.
Migration Studies
http://reply.papertrans.cn/3/220/21996/21996-29.png
Submitted on: 07 November 2011.
Revised on: 16 November 2011.
Accepted on: 09 December 2011.
Migration Studies---OXFORD UNIV PRESS