@article{PIM_1979_N_S_25_39_a3,
     author = {V. Bagatelj and T. Pisanski},
     title = {On {Partially} {Directed} {Eulerian} {Multigraphs}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {16 },
     publisher = {mathdoc},
     volume = {_N_S_25},
     number = {39},
     year = {1979},
     url = {http://geodesic.mathdoc.fr/item/PIM_1979_N_S_25_39_a3/}
}