Andreeva, O., Abramenko, V. and Malashchuk, V. (2024) “Cyclic variations in the areas of coronal holes and sunspots in 2010–2021”, Acta Astrophysica Taurica, 5(3), pp. 14–17. Available at: https://astrophysicatauricum.org/index.php/aat/article/view/87 (Accessed: 21 November 2024).