Bibliography

Searched with:

http://www.yahoo.com

http://geosun1.sjsu.edu/~dreed/onset/broad_pollution.html

http://www,foe.org.hk

Music:

YAMAHA Soft Synthesizer S-YXG50 Player. Music number 19---STARS

Animation GIFs:

http://www.coolarchive.com

http://spitfire.cwv.net/~cdbailey