Research on High Accuracy Dual Differential LS+AR Method 
in Earth Polar Motion Parameters Prediction
CHEN Lue,TANG Geshi,XU Xueqing,HU Songjie,SUN Jing,LIU Ye
jgg . 2015, (5): 844 -848 .  DOI: 10.14075/j.jgg.2015.05.026