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"Transitive orientations in bull-reducible Berge graphs."
Celina M. H. de Figueiredo, Frédéric Maffray, Cláudia Villela Maciel (2011)
- Celina M. H. de Figueiredo, Frédéric Maffray, Cláudia Villela Maciel:
Transitive orientations in bull-reducible Berge graphs. Discret. Appl. Math. 159(7): 561-573 (2011)
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