SYNTHESIS AND PROPERTIES THE SYSTEM OF YxYBa2–xCu4O8±Δ, (0.05£х£0.2): UDC 546. 65’ 56’ 431. Вісник: Хімія [Internet]. 2008 Apr. 17 [cited 2026 Oct. 6];45(2):42-3. Available from: https://chemistry.bulletin.knu.ua/en/article/view/8343