@article{MASLO_1966_16_1_a9,
     author = {Zelinka, Bohdan},
     title = {Introducing an {Orientation} into a {Given} {Non-Directed} {Graph}},
     journal = {Mathematica slovaca},
     pages = {66--71},
     year = {1966},
     volume = {16},
     number = {1},
     mrnumber = {0204325},
     zbl = {0138.19501},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1966_16_1_a9/}
}