@inproceedings{sgem2022s1937,
  title = {BULGARIAN CASE STUDIES IN IMPROVING URBAN AIR QUALITY},
  author = {Kliment Naydenov},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies},
  year = {2022},
  pages = {287-294},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2022/4.1/s19.37}
}