IOP Publishing, IOP Conference Series: Earth and Environmental Science, 21(6), p. 212008, 2009
DOI: 10.1088/1755-1307/6/21/212008
IOP Publishing, IOP Conference Series: Earth and Environmental Science, 21(6), p. 212008
DOI: 10.1088/1755-1307/6/1/212008
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