Г, О. . Ялихгүй "тодотгол". Scientific transaction of the National University of Mongolia. Physics, [S. l.], v. 13, n. 251, p. 36–41, 2022. DOI: 10.22353/physics.v13i251.196. Disponível em: https://journal.num.edu.mn/physics/article/view/196. Acesso em: 13 apr. 2025.