BAYARAA, Batkhishig. Preface - v.51. Mongolian Geoscientist, [S. l.], v. 51, p. i, 2020. DOI: 10.5564/mgs.v51i0.1456. Disponível em: https://test.mongoliajol.info/MGS/article/view/1456. Acesso em: 22 dec. 2025.