Chapter 9: Various Notions of Approximations: Good, Better, Best, and More==External links==*Pierluigi Crescenzi, Viggo Kann, Magnús Halldórsson, Marek Karpinski and Gerhard Woeginger, "A compendium of NP optimization problems".
Chapter 9: Various Notions of Approximations: Good, Better, Best, and More* Pierluigi Crescenzi, Viggo Kann, Magnús Halldórsson, Marek Karpinski and Gerhard Woeginger, "A compendium of NP optimization problems".