References |
[1] Minieka, E. Optimization Algorithms for Networks and Graphs,
Marcel Dekker, Inc., New York and Basel, 1978
[2] Christofides, N. Graph Theory. An Algorithmic approach,
Academic Press Inc (London) Ltd. 1975, 1977
[3] Swamy, M., K. Thulasirman. Graphs, Networks and Algorithms,
John Wiley & Sons, 1981
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