BYAMBASUREN, T.; KHUUKHENKHUU, B.; OCHIRBAT, G.; TSEDENBALJIR, D. Temporal variation of the pseudo total content of heavy metals in Ulaanbaatar soil. Proceedings of the Mongolian Academy of Sciences, [S. l.], v. 59, n. 3, p. 21–28, 2019. DOI: 10.5564/pmas.v59i3.1243. Disponível em: https://www.mongoliajol.info/index.php/PMAS/article/view/1243. Acesso em: 29 sep. 2022.