ANDREEVA, O.; MALASHCHUK, V. Results of 20-year solar observations in the He I λ 1083 nm line at the Crimean Astrophysical Observatory. Acta Astrophysica Taurica, [S. l.], v. 5, n. 2, p. 21–24, 2024. Disponível em: https://astrophysicatauricum.org/index.php/aat/article/view/82. Acesso em: 16 sep. 2024.