3Xu Xiangde,Zhou Li,Zhou Xiuji,Yan Peng,Weng Yonghui,Tao Shuwang,Mao Jitai,Ding Guoan,Bian Lingen,Jhon Chan. Influencing domain of peripheral sources in the urban heavy pollution process of Beijing[J] 2005,Science in China Series D: Earth Sciences(4):565~575