@misc{indiciae419f066f1084,
  title = {[Source apportionment on fine particles in Beijing].},
  author = {Yu Song and Xiaoyan Tang and Chen Fang and Yuanhang Zhang and Min Hu and Limin Zeng},
  year = {2002},
  url = {https://pubmed.ncbi.nlm.nih.gov/12619270/},
  note = {Source identifier: 12619270}
}