Covering the edges of digraphs in D(3, 3) and D(4, 4) with directed cuts

@article{Bai2011CoveringTE,
  title={Covering the edges of digraphs in D(3, 3) and D(4, 4) with directed cuts},
  author={Yandong Bai and Binlong Li and Shenggui Zhang},
  journal={Discret. Math.},
  year={2011},
  volume={312},
  pages={1596-1601}
}

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