-This chapter is meant as a refresher on elementary graph theory. If -the reader has some previous acquaintance with graph algorithms, this -chapter should be enough to get started. If the reader has no -previous background in graph algorithms we suggest a more thorough -introduction such as Introduction to Algorithms -by Cormen, Leiserson, and Rivest. +This chapter is meant as a refresher on elementary graph theory. If the +reader has some previous acquaintance with graph algorithms, this +chapter should be enough to get started. If the reader has no previous +background in graph algorithms we suggest a more thorough introduction +such +as Introduction +to Algorithms by Cormen, Leiserson, Rivest, and Stein.