@article{PIM_2012_N_S_92_106_a2,
     author = {Aleksandar T. Lipkovski},
     title = {Digraphs {Associated} {With} {Finite} {Rings}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {35 },
     publisher = {mathdoc},
     volume = {_N_S_92},
     number = {106},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_2012_N_S_92_106_a2/}
}