IOP Publishing, IOP Conference Series: Earth and Environmental Science, 39(6), p. 392023, 2009
DOI: 10.1088/1755-1307/6/39/392023
IOP Publishing, IOP Conference Series: Earth and Environmental Science, 39(6), p. 392023
DOI: 10.1088/1755-1307/6/9/392023
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