W. Wang, Simonich, S. L. Massey, Wang, W., Giri, B., Zhao, J., Xue, M., Cao, J., Lu, X., and Tao, S.,
“Atmospheric polycyclic aromatic hydrocarbon concentrations and gas/particle partitioning at background, rural village and urban sites in the North China Plain”,
Atmospheric Research, vol. 99, no. 2, pp. 197 - 206, 2011.