Wang Yang, Li Ang, Xie Pin-Hua, Chen Hao, Mou Fu-Sheng, Xu Jin, Wu Feng-Cheng, Zeng Yi, Liu Jian-Guo, Liu Wen-Qing. Measuring tropospheric vertical distribution and vertical column density of NO2 by multi-axis differential optical absorption spectroscopyJ. Acta Physica Sinica, 2013, 62(20): 200705. DOI: 10.7498/aps.62.200705