@Article{Zhao2022,
author="Zhao, M.
and Cheng, C.
and Zhou, Y.
and Li, X.
and Shen, S.
and Song, C.",
title="A global dataset of annual urban extents (1992--2020) from harmonized nighttime lights",
journal="Earth Syst. Sci. Data",
year="2022",
month="Feb",
day="08",
publisher="Copernicus Publications",
volume="14",
number="2",
pages="517--534",
issn="1866-3516",
doi="10.5194/essd-14-517-2022",
url="https://essd.copernicus.org/articles/14/517/2022/",
url="https://essd.copernicus.org/articles/14/517/2022/essd-14-517-2022.pdf",
url="https://doi.org/10.5194/essd-14-517-2022"
}