@misc{indiciae5d1860f2260b,
  title = {Mercury in coals and fly ashes from Republika and Bobov dol thermoelectric power plants},
  author = {I. Kostova and C. Vassileva and J. Hower and Maria Mastalerz and S. Vassilev and N. Nikolova},
  year = {2011},
  url = {https://pubs.usgs.gov/publication/70036611},
  note = {Source identifier: 70036611}
}