Pham Minh, Tien, Tuan Nguyen Xuan, Trung Dinh Van, Manh Le Duy, and Hai Bui Van. “Depolarization Property of Cirrus Clouds Over Hanoi”. Communications in Physics 27, no. 4 (December 15, 2017): 339. Accessed December 4, 2021. https://vjs.ac.vn/index.php/cip/article/view/10836.