@article{ARM_2004__40_4_a1,
     author = {\v{S}\'amal, Robert},
     title = {Antiflows, oriented and strong oriented colorings of graphs},
     journal = {Archivum mathematicum},
     pages = {335--343},
     publisher = {mathdoc},
     volume = {40},
     number = {4},
     year = {2004},
     mrnumber = {2129955},
     zbl = {1114.05032},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2004__40_4_a1/}
}