汶川大地震前后地磁Z分量的近似熵变化

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许康生,辛长江

Variation of Approximate Entropy of Geomagnetic Z-component 
of the 2008 Wenchuan Earthquake

XU Kangsheng,XIN Changjiang

大地测量与地球动力学 . 2015, (1): 154 -157 . DOI: 10.14075/j.jgg.2015.01.035