https://www.cs.odu.edu/~mln/teaching/cs595-s12/?method=display&redirect=http://www.bridgessacramento.com/members/haastrup24hutchinson/activity/50646/
https://www.cs.odu.edu/~mln/teaching/cs595-s12/?method=display&redirect=http://www.bridgessacramento.com/members/haastrup24hutchinson/activity/50646/