@article{NSJOM_1983_13_Nonea_32,
     author = {Torga\v{s}ev Aleksandar},
     title = {Graphs whose does not exceed 3},
     journal = {Novi Sad Journal of Mathematics},
     pages = {353-360},
     publisher = {mathdoc},
     volume = {13},
     year = {1983},
     url = {http://geodesic.mathdoc.fr/item/NSJOM_1983_13_Nonea_32/}
}