?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Ngo%2C+Truong+X.&rft.aulast=Ngo&rft.aufirst=Truong+X.&rft.issue=16&rft.volume=42&rft.date=2021&rft.atitle=Air+pollution+in+Vietnam+during+the+COVID-19+social+isolation%2C+evidence+of+reduction+in+human+activities&rft.title=International+Journal+of+Remote+Sensing&rft.pages=6128-6154&rft.genre=article