@article{PIM_1996_N_S_59_73_a0,
     author = {Milenko Petri\'c},
     title = {Primitivity of {Generalized} {Direct} {Product} of {Digraphs}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {1 },
     publisher = {mathdoc},
     volume = {_N_S_59},
     number = {73},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_1996_N_S_59_73_a0/}
}