Thành, N., & 		Xý, N.
(1990).
 Ổn định phổ bức xạ, dùng nguồn xung sáng chuẩn.
<em>VNU Journal Of Science: Natural Sciences And Technology, 6</em>(3).
Retrieved from <a href="https://js.vnu.edu.vn/NST/article/view/4363" target="_new">https://js.vnu.edu.vn/NST/article/view/4363</a>