Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_1976_6_Nonea_0, author = {Ivi\'c Aleksandar}, title = {On a number-theoretical system of functional equations}, journal = {Novi Sad Journal of Mathematics}, pages = {1-5}, publisher = {mathdoc}, volume = {6}, year = {1976}, url = {http://geodesic.mathdoc.fr/item/NSJOM_1976_6_Nonea_0/} }
Ivić Aleksandar. On a number-theoretical system of functional equations. Novi Sad Journal of Mathematics, Tome 6 (1976). http://geodesic.mathdoc.fr/item/NSJOM_1976_6_Nonea_0/