Zheng J, Hu M, Zhang R, Yue D, Wang Z, Guo S, Li X, Bohn B, Shao M, He L, et al. Measurements of gaseous H2SO4 by AP-ID-CIMS during CAREBeijing 2008 Campaign. Atmos. Chem. Phys.Atmos. Chem. Phys. 2011;11:7755-7765.

Zheng J, Hu M, Zhang R, Yue D, Wang Z, Guo S, Li X, Bohn B, Shao M, He L, et al. Measurements of gaseous H2SO4 by AP-ID-CIMS during CAREBeijing 2008 Campaign. Atmos. Chem. Phys.Atmos. Chem. Phys. 2011;11:7755-7765.