@article{05050800,
title = {Noncrossing trees and noncrossing graphs.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {13},
year = {2006},
zbl = {1098.05022},
language = {en},
url = {http://dml.mathdoc.fr/item/05050800}
}
Chen, William Y.C.; Yan, Sherry H.F. Noncrossing trees and noncrossing graphs.. The Electronic Journal of Combinatorics [electronic only], Tome 13 (2006) . http://gdmltest.u-ga.fr/item/05050800/