Reference
Fox, C. (2013). Seeking the Stars. Retrieved
from http://kids.nationalgeographic.com/kids/stories/spacescience/lightpollution/
International Dark-Sky Association (2013). “Light Pollution”. Retrieved from http://www.darksky.org/
Pun, C. S. (2013). Largest ever night sky brightness data analysis: Hong Kong urban night sky brightness ultra international standards thousandfold. Retrieved from http://www.scifac.hku.hk/file/news/1965/NSN_press_release_chi__revised,_20_March_2013__.pdf
Salmon, M. 2003. Artificial night lighting and turtles. Biologist 50:163–168.
SKY & Telescope (2010). The cover page of SKY & Telescope in May 2010. Retrieved from http://orientaldaily.on.cc/cnt/news/20100617/00176_010.html
University of Hong Kong (2013). Hong Kong Night Sky Brightness Monitoring Network (NSN) shows the reading of night sky brightness in different districts. Retrieved from http://www.scifac.hku.hk/file/news/1965/NSN_press_release_chi__revised,_20_March_2013__.pdf
Witherington, B. E. 1997. The problem of photo pollution for sea turtles another nocturnal animals. Pages 303–328 in J. R. Clemmons and R. Buchholz (eds.), Behavioral approaches to conservation in the wild. Cambridge University Press, Cambridge.
International Dark-Sky Association (2013). “Light Pollution”. Retrieved from http://www.darksky.org/
Pun, C. S. (2013). Largest ever night sky brightness data analysis: Hong Kong urban night sky brightness ultra international standards thousandfold. Retrieved from http://www.scifac.hku.hk/file/news/1965/NSN_press_release_chi__revised,_20_March_2013__.pdf
Salmon, M. 2003. Artificial night lighting and turtles. Biologist 50:163–168.
SKY & Telescope (2010). The cover page of SKY & Telescope in May 2010. Retrieved from http://orientaldaily.on.cc/cnt/news/20100617/00176_010.html
University of Hong Kong (2013). Hong Kong Night Sky Brightness Monitoring Network (NSN) shows the reading of night sky brightness in different districts. Retrieved from http://www.scifac.hku.hk/file/news/1965/NSN_press_release_chi__revised,_20_March_2013__.pdf
Witherington, B. E. 1997. The problem of photo pollution for sea turtles another nocturnal animals. Pages 303–328 in J. R. Clemmons and R. Buchholz (eds.), Behavioral approaches to conservation in the wild. Cambridge University Press, Cambridge.