An improved methodology for quantifying the impact of human activities on hydrological drought change oleh Junju Zhou, Qiaoqiao Li, Aizhong Ye, Shizhen Xu, Yunhan Yuan, Shiqin Xu, Dongxia Zhang, Xi Zhao, Yanbing Zhu, Yaru Zhao, Dongxiang Xue, Jiao Dou, Chunfang Liu, Wei Shi, Wei Wei, Xuemei Yang