@article{CRMATH_2004__339_5_317_0,
     author = {El Sahili, Amine},
     title = {Antidirected paths in 5-chromatic digraphs},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {317--320},
     year = {2004},
     publisher = {Elsevier},
     volume = {339},
     number = {5},
     doi = {10.1016/j.crma.2004.06.028},
     language = {en},
     url = {https://www.numdam.org/articles/10.1016/j.crma.2004.06.028/}
}