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http://reply.papertrans.cn/3/215/21413/21413-24.png
Submitted on: 03 September 2013.
Revised on: 22 September 2013.
Accepted on: 01 October 2013.
Materia-Rio de Janeiro
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Submitted on: 22 June 2001.
Revised on: 06 July 2001.
Accepted on: 11 July 2001.
Materia-Rio de Janeiro---UNIV FED RIO DE JANEIRO, LAB HIDROGENIO