Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@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/} }
Torgašev Aleksandar. Graphs whose does not exceed 3. Novi Sad Journal of Mathematics, Tome 13 (1983). http://geodesic.mathdoc.fr/item/NSJOM_1983_13_Nonea_32/