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Line 106:
| title = String graphs and incomparability graphs
| volume = 230
| year = 2012
| hdl-access = free
}}.
*{{citation
| first1 = M. C. | last1 = Golumbic |author1-link = Martin Charles Golumbic | first2 = D. | last2 = Rotem | first3 = J. | last3 = Urrutia | author3-link = Jorge Urrutia Galicia
|