基于信息熵的河南省年降水量时空变化研究
王振亚,吴德波,朱余生
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WANG Zhen-ya,WU De-bo,ZHU Yu-sheng
长江科学院院报 . 2013, (11): 16 -19 .  DOI: 10.3969/j.issn.1001-5485.2013.11.0042013,30(11):16-19