Ngo, Truong X. and Do, Ngoc T.N. and Phan, Hieu D.T. and Tran, Vinh T. and Mac, Tra T.M. and Le, Anh H. and Do, Nguyet V. and Bui, Hung Q. and Nguyen, Thanh T.N.  (2021) Air pollution in Vietnam during the COVID-19 social isolation, evidence of reduction in human activities.  International Journal of Remote Sensing, 42  (16).   pp. 6128-6154.