Bačeva, K., T. Stafilov, and R. Šajn. “Monitoring of Air Pollution With Heavy Metals in the Vicinity of a Ferronickel Smelter Plant by Deposited Dust”. Macedonian Journal of Ecology and Environment, vol. 14, no. 1-2, Dec. 2012, pp. 47-57, doi:10.59194/MJEE12141-2047b.