Long-term trends in visibility and atmospheric extinction coefficient over Yunnan-Guizhou Plateau in southwest China for 1961—2006
ZHENG Xiaobo, WANG Xuefeng, LUO Yuxiang, ZHAO Tianliang, CHEN Juan
Ecology and Environment . 2010, (2): 314 -319 .  DOI: 10.16258/j.cnki.1674-5906(2010)02-0314-06

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