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"Loose vertices in C4-free Berge graphs."
Igor Parfenoff, Florian Roussel, Irena Rusu (2002)
- Igor Parfenoff, Florian Roussel, Irena Rusu:
Loose vertices in C4-free Berge graphs. Discret. Math. 258(1-3): 137-160 (2002)
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