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References
- ↑ Cun-Quan Zhang, Integer flows and cycle covers of graphs, Marcel Dekker,1997.
- ↑ "Handbook in Graph Theory" (2004) ISBN 1-58488-090-2, p. 225
- ↑ ""The Cycle Double Cover Conjecture"". Archived from the original on 2011-07-20. Retrieved 2008-12-21.
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