@misc{indiciae8af34ec327f2,
  title = {Geophysics. Longitudinal variation in springtime ozone trends.},
  author = {B M Knudsen and S B Andersen},
  year = {2001},
  doi = {10.1038/35099677},
  url = {https://pubmed.ncbi.nlm.nih.gov/11607021/},
  note = {Source identifier: 11607021}
}