Preface Vol.48. Mongolian Geoscientist, [S. l.], n. 48, p. 2, 2019. DOI: 10.5564/mgs.v0i48.1149. Disponível em: https://www.mongoliajol.info/index.php/MGS/article/view/1149. Acesso em: 13 jul. 2026.