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Park, H. (2011). Remembering the starry night (SkyAct): Using smartphones and social networking to raise community awareness to light pollution. Masters Thesis, York University, .
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Baskill, D. (2010). How dark is your sky? Astronomy & Geophysics, 51(6), 6.23–6.24.
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So, C. W. (2010). Observational Studies of the Night Sky in Hong Kong. Master's thesis, The University of Hong Kong., .
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Luginbuhl, C. B., Walker, C. E., & Wainscoat, R. J. (2009). Lighting and Astronomy. Physics Today, 62(12), 32–37.
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Garstang, R. H. (2007). Brightness of clouds at night over a city. The Observatory, 127, 1–13.
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