Bernhard Korte Combination optimization : theory and algorithms - 5th ed. - Heidelberg : Springer , 2012. - xix,6559p. : ill. ; 25cm. - Algorithms and combinatorics; 21 . ISBN: 3-642-24487-2 Subjects--Topical Terms: Combination optimization LC Class. No.: QA402.5.K6665 2012