@misc{indiciaee47ff1bca855,
  title = {On the relation between changing meteorological circumstances and the decrease of the sulphur dioxide concentration around Rotterdam.},
  author = {F H Schmidt and C A Velds},
  year = {1969},
  doi = {10.1016/0004-6981(69)90064-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5354786/},
  note = {Source identifier: 5354786}
}