Byambajav, G., Batbaatar, B., Ariunsaikhan, A., & Chonokhuu, S. (2021). Particulate matter concentrations during winter seasons of 2016-2020 in Ulaanbaatar, Mongolia. Proceedings of the Mongolian Academy of Sciences, 61(01), 30–39. https://doi.org/10.5564/pmas.v61i01.1559