Zhao, Q.;                     Ma, X.;                     Yao, W.;                     Liu, Y.;                     Du, Z.;                     Yang, P.;                     Yao, Y.    
        Improved Drought Monitoring Index Using GNSS-Derived Precipitable Water Vapor over the Loess Plateau Area. Sensors 2019, 19, 5566.
    https://doi.org/10.3390/s19245566
    AMA Style
    
                                Zhao Q,                                 Ma X,                                 Yao W,                                 Liu Y,                                 Du Z,                                 Yang P,                                 Yao Y.        
                Improved Drought Monitoring Index Using GNSS-Derived Precipitable Water Vapor over the Loess Plateau Area. Sensors. 2019; 19(24):5566.
        https://doi.org/10.3390/s19245566
    
    Chicago/Turabian Style
    
                                Zhao, Qingzhi,                                 Xiongwei Ma,                                 Wanqiang Yao,                                 Yang Liu,                                 Zheng Du,                                 Pengfei Yang,                                 and Yibin Yao.        
                2019. "Improved Drought Monitoring Index Using GNSS-Derived Precipitable Water Vapor over the Loess Plateau Area" Sensors 19, no. 24: 5566.
        https://doi.org/10.3390/s19245566
    
    APA Style
    
                                Zhao, Q.,                                 Ma, X.,                                 Yao, W.,                                 Liu, Y.,                                 Du, Z.,                                 Yang, P.,                                 & Yao, Y.        
        
        (2019). Improved Drought Monitoring Index Using GNSS-Derived Precipitable Water Vapor over the Loess Plateau Area. Sensors, 19(24), 5566.
        https://doi.org/10.3390/s19245566