青铜峡站天然年径流量枯水段周期变化分析
李玉山;王志勇;芮江峰;李玉珍
Analysis on Approximate Periodicity of Annual Runoff Series at Qingtongxia Station
LI Yu-shan;WANG Zhi-yong;RUI Jiang-feng;LI Yu-zhen
人民黄河 . 2012, (7): 43 -44 .