黄河中下游地区降水变化的周期分析
郝志新, 郑景云, 葛全胜
Pr ecipitation Cycles in the Middle and Lower Yellow River
HAO Zhixin, ZHENG Jingyun, GE Quansheng
地理学报 . 2007, (5): 537 -544 .  DOI: 10.11821/xb200705010