D, S.; S, L.; G, G.; P, Z. Some Review for Identification of air pollution sources of Ulaanbaatar  City using ED-XRF Analysis. Scientific transaction of the National University of Mongolia. Physics, [S. l.], v. 20, n. 438, p. 25–30, 2022. DOI: 10.22353/physics.v20i438.119. Disponível em: https://journal.num.edu.mn/physics/article/view/119. Acesso em: 23 nov. 2024.