BibTex format
@article{PRETZEL:1990:10.1137/0403047,
author = {PRETZEL, O and YOUNGS, D},
doi = {10.1137/0403047},
journal = {SIAM JOURNAL ON DISCRETE MATHEMATICS},
pages = {544--553},
title = {CYCLE LENGTHS AND GRAPH ORIENTATIONS},
url = {http://dx.doi.org/10.1137/0403047},
volume = {3},
year = {1990}
}