@article{10_21136_CMJ_2017_0131_16,
     author = {Ji, Yurong and Wu, Shufei and Song, Hui},
     title = {On short cycles in triangle-free oriented graphs},
     journal = {Czechoslovak Mathematical Journal},
     pages = {67--75},
     publisher = {mathdoc},
     volume = {68},
     number = {1},
     year = {2018},
     doi = {10.21136/CMJ.2017.0131-16},
     mrnumber = {3783585},
     zbl = {06861567},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2017.0131-16/}
}