Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{JRAM_1981__323_152343, author = {W. Narkiewicz}, title = {Euler's function and the sum of divisors.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {200--212}, publisher = {mathdoc}, volume = {323}, year = {1981}, zbl = {0447.10050}, url = {http://geodesic.mathdoc.fr/item/JRAM_1981__323_152343/} }
W. Narkiewicz. Euler's function and the sum of divisors.. Journal für die reine und angewandte Mathematik, Tome 323 (1981), pp. 200-212. http://geodesic.mathdoc.fr/item/JRAM_1981__323_152343/