Zhang, H.; Hu, D.; Chen, J.; Ye, X.; Wang, S. X.; Hao, J. M.; Wang, L.; Zhang, R.; An, Z. Particle size distribution and polycyclic aromatic hydrocarbons emissions from agricultural crop residue burning. Environmental Science & Technology. 2011, 45 (13): 5477–82. Bibcode:2011EnST...45.5477Z. PMID 21615081. doi:10.1021/es1037904.
Zhang, H.; Hu, D.; Chen, J.; Ye, X.; Wang, S. X.; Hao, J. M.; Wang, L.; Zhang, R.; An, Z. Particle size distribution and polycyclic aromatic hydrocarbons emissions from agricultural crop residue burning. Environmental Science & Technology. 2011, 45 (13): 5477–82. Bibcode:2011EnST...45.5477Z. PMID 21615081. doi:10.1021/es1037904.
Zhang, H.; Hu, D.; Chen, J.; Ye, X.; Wang, S. X.; Hao, J. M.; Wang, L.; Zhang, R.; An, Z. Particle size distribution and polycyclic aromatic hydrocarbons emissions from agricultural crop residue burning. Environmental Science & Technology. 2011, 45 (13): 5477–82. Bibcode:2011EnST...45.5477Z. PMID 21615081. doi:10.1021/es1037904.