T. Pham Minh, T. Nguyen Xuan, T. Dinh Van, M. Le Duy and H. Bui Van, Depolarization Property of Cirrus Clouds Over Hanoi, Comm. Phys. 27 (2017) 339. DOI: https://doi.org/10.15625/0868-3166/27/4/10836.