J, S. The mini-orange magnetic β-spectrometer. Scientific transaction of the National University of Mongolia. Physics, [S. l.], v. 9, n. 167, p. 5–18, 2022. DOI: 10.22353/physics.v9i167.404. Disponível em: https://journal.num.edu.mn/physics/article/view/404. Acesso em: 23 nov. 2024.