IOP Publishing, IOP Conference Series: Earth and Environmental Science, 30(6), p. 302026, 2009
DOI: 10.1088/1755-1307/6/30/302026
IOP Publishing, IOP Conference Series: Earth and Environmental Science, 30(6), p. 302026
DOI: 10.1088/1755-1307/6/0/302026
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