S. LODOYSAMBA; D. SHAGJJAMBA; G. GERELMAA. Characterization of PM2.5 and PM10-2.5 air pollution of Ulaanbaatar city. Scientific transaction of the National University of Mongolia. Physics, [S. l.], v. 15, n. 309, p. 1–4, 2022. DOI: 10.22353/physics.v15i309.251. Disponível em: https://journal.num.edu.mn/physics/article/view/251. Acesso em: 13 apr. 2025.