Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1978__28_3_a2, author = {Porubsk\'y, \v{S}tefan}, title = {On theorems of {Niven} and {Dressler}}, journal = {Mathematica slovaca}, pages = {243--246}, publisher = {mathdoc}, volume = {28}, number = {3}, year = {1978}, mrnumber = {534990}, zbl = {0418.10004}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1978__28_3_a2/} }
Porubský, Štefan. On theorems of Niven and Dressler. Mathematica slovaca, Tome 28 (1978) no. 3, pp. 243-246. http://geodesic.mathdoc.fr/item/MASLO_1978__28_3_a2/