@article{02248136,
title = {Even bonds of prescribed directed parity.},
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {12},
year = {2005},
zbl = {1079.05084},
language = {en},
url = {http://dml.mathdoc.fr/item/02248136}
}
Hartmann, Sven; Little, C.H.C. Even bonds of prescribed directed parity.. The Electronic Journal of Combinatorics [electronic only], Tome 12 (2005) . http://gdmltest.u-ga.fr/item/02248136/