Bibliography
http://www.juneauempire.com/stories/012107/spo_20070121002.shtml
http://www.exploratorium.edu/hockey/skating2.html
http://www.dimensionsguide.com/hockey-rink-dimensions/
http://www.infoplease.com/spot/sportsup1.html
The Physics of Hockey
2002, Alain Hache'
http://zamboni.com/welcome.html
http://www.uwsp.edu/geo/projects/geoweb/participants/Dutch/PETROLGY/Ice%20Structure.HTMl
http://www.exploratorium.edu/hockey/shooting1.html