@inproceedings{sgem2009paper,
  title = {A SYSTEM FOR INFORMATION AND FORECAST OF AIR QUALITY OVER BULGARIA},
  author = {D. Syrakov and K. Ganev and M. Prodanova and N. Miloshev and G. Jordanov and I. Etropolska and K. Slavo},
  booktitle = {9th International Multidisciplinary Scientific GeoConference SGEM2009},
  year = {2009},
  pages = {297-304},
  publisher = {SGEM Scientific GeoConference},
  doi = {}
}