For further information on light pollution, its effects and what’s being done to combat it, consult the following sources:

• "Light Pollution: Responses and Remedies" by Bob Mizon, published in 2002.
• "Lighting", fourth edition by D.C. Pritchard, published in 1990.
• http://star.arm.ac.uk/darksky/armagh.html
• http://www.darksky.org
• http://www.dark-skies.org
• http://www.ile.org.uk
• http://www.flap.org
• http://www.lightpollution.it
• http://www.metrolux.com/starbright.htm
• http://www.rasc.ca/light/
• http://www.cpre.org.uk
• http://www.prettybirds.net/Light.htm
• http://www.wildtalk.org/3spring01.html
• "Directions in Psychiatry: The Proper Use of Light Therapy" by David H. Aver