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"The crossing number of a projective graph is quadratic in the face-width."
Isidoro Gitler et al. (2007)
- Isidoro Gitler, Petr Hlinený, Jesús Leaños, Gelasio Salazar:
The crossing number of a projective graph is quadratic in the face-width. Electron. Notes Discret. Math. 29: 219-223 (2007)
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