Papadimitriou, Christos H <br/><br/>
Combinational optimization: algorithms and complexity 

 - New Jersey  Prentice Hall  1982 
 - xvi, 496p p. 
<br/><br/><label>ISBN: </label>81-203-1139-6 
<br/><br/><label>Subjects--Index Terms: </label>Optimization