Analysis on multi-scale cycles of solar activity with the data of tree-ring(1511-1954) -Application of EMD
ZHANG Zhen-Zhen, LIN Zhen-Shan, DU Jian-Li, Liu Hui-Yu
SCIENTIA GEOGRAPHICA SINICA . 2009, (5): 709 -714 .  DOI: 10.13249/j.cnki.sgs.2009.05.709