Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1979__29_1_a8, author = {Porubsk\'y, \v{S}tefan}, title = {\"Uber die {Dichtigkeit} der {Werte} multiplikativer {Funktionen}}, journal = {Mathematica slovaca}, pages = {69--72}, publisher = {mathdoc}, volume = {29}, number = {1}, year = {1979}, mrnumber = {561779}, zbl = {0403.10002}, language = {ge}, url = {http://geodesic.mathdoc.fr/item/MASLO_1979__29_1_a8/} }
Porubský, Štefan. Über die Dichtigkeit der Werte multiplikativer Funktionen. Mathematica slovaca, Tome 29 (1979) no. 1, pp. 69-72. http://geodesic.mathdoc.fr/item/MASLO_1979__29_1_a8/