| TITLE: | Approximation algorithms for NP-hard problems / edited by Dorit S. Hochbaum. |
| PUBLISHER: | Boston : PWS Pub. Co., [1996],c1997. |
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| AUTHOR: | Michalewicz, Zbigniew. |
| TITLE: | How to solve it : modern heuristics / Zbigniew Michalewicz, David B. Fogel. |
| PUBLISHER: | Berlin ; New York : Springer, c2000. |
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