Application and Comparison of Several Drought Monitoring Models in Northern Shaanxi
LI Jing,WANG Lian xi,SHEN Cheng,LI Qi,LI Deng ke
Chinese Journal of Agrometeorology . 2014, (01): 97 -102 .  DOI: 10.3969/j.issn.1000-6362.2014.01.015