Submitted on: 12 August 1998.
Revised on: 23 September 1998.
Accepted on: 17 October 1998.
JOURNAL OF WORLD PREHISTORY---SPRINGER
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Submitted on: 07 November 2004.
Revised on: 07 December 2004.
Accepted on: 27 December 2004.
JOURNAL OF WORLD PREHISTORY
Submitted on: 27 December 2004.
Revised on: 03 February 2005.
Accepted on: 01 March 2005.
JOURNAL OF WORLD PREHISTORY
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