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Submitted on: 19 February 2012.
Revised on: 17 March 2012.
Accepted on: 31 March 2012.
QUATERNARY RESEARCH
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Submitted on: 04 April 2011.
Revised on: 24 April 2011.
Accepted on: 17 May 2011.
QUATERNARY RESEARCH---CAMBRIDGE UNIV PRESS
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Submitted on: 07 January 2018.
Revised on: 07 February 2018.
Accepted on: 20 February 2018.
QUATERNARY RESEARCH---CAMBRIDGE UNIV PRESS
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