Missing OH source in a suburban environment near Beijing: observed and modelled OH and HO2 concentrations in summer 2006 - Lu, K. D.; Hofzumahaus, A.; Holland, F.; Bohn, B.; Brauers, T.; Fuchs, H.; Hu, M.; H鋝eler, R.; Kita, K.; Y. Kondo; X. Li; Lou, S. R.; et al. (Atmos. Chem. Phys.Atmos. Chem. Phys., 2013)