References

• 1
  A. Aho, J. Hopcroft, and J. Ullman, The Design and Analysis of Computer Algorithms, Addison-Wesley, Reading, Massachusetts, 1983.
• 2
  E. Horowitz and S. Sahni, Fundamentals of Computer Algorithms, Computer Science Press, Rockville, Maryland, 1978.
• 3
  S. Even, Graph Algorithms, Computer Science Press, Rockville, Maryland, 1980.