@inproceedings{sgem2012s06v2008,
  title = {MAGNETIC PARTICLES AND POLLENS IN INDOOR AND OUTDOOR SETTLED DUST FROM SEVERAL BULGARIAN CITIES   ENVIRONMENTAL IMPLICATIONS},
  author = {Petar Petrov},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2012 12th International Multidisciplinary Scientific GeoConference},
  year = {2012},
  pages = {},
  publisher = {Stef92 Technology},
  doi = {10.5593/sgem2012/s06.v2008}
}