The absence of efficient dual pairs of spanning trees in planar graphs.
Riley, T.R. ; Thurston, W.P.
The Electronic Journal of Combinatorics [electronic only], Tome 13 (2006), / Harvested from The Electronic Library of Mathematics
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Publié le : 2006-01-01
EUDML-ID : urn:eudml:doc:126454 
@article{05050801,
     title = {The absence of efficient dual pairs of spanning trees in planar graphs.},
     journal = {The Electronic Journal of Combinatorics [electronic only]},
     volume = {13},
     year = {2006},
     zbl = {1097.05015},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05050801}
}

Riley, T.R.; Thurston, W.P. The absence of efficient dual pairs of spanning trees in planar graphs.. The Electronic Journal of Combinatorics [electronic only], Tome 13 (2006) . http://gdmltest.u-ga.fr/item/05050801/