Sofronievska, I., J. Petreska Stanoeva, J. Bogdanov, and M. Stefova. “Assay of Volatile Organic Compounds in Urban Air Using Passive Sampling and Gas Chromatography Coupled to Mass Spectrometry”. Macedonian Journal of Ecology and Environment, vol. 24, no. 2, Dec. 2022, pp. 103-1, doi:10.59194/MJEE22242103s.