1. http://library.thinkquest.org/C006300/noflash/

2. http://www.billiardworld.com/physics.html

3. http://www.kent.k12.wa.us/staff/trobinso/physicspages/PhysOf1998A/Pool-Koura/yourpage.htm

4. http://www.thebilliardstour.com/graphics.html

5. http://www.jimloy.com/billiard/phys.htm

6. Merrill, Physics. New York, 1992.

7. http://www.phys.virginia.edu/classes/109n/more_stuff/Applets/Collision/Jarapplet.html

8. http://www.cuecare.com/history.htm

9. http://www.poolroom.com/articles/history.html

10. http://www.flamingtext.com

11.  http://set.lanl.gov/sports/pool9pdf.pdf