Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1971__12_4_a3, author = {Nov\'ak, B\v{r}etislav}, title = {On certain sum in number theory}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {669--685}, publisher = {mathdoc}, volume = {12}, number = {4}, year = {1971}, mrnumber = {0308054}, zbl = {0234.10029}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1971__12_4_a3/} }
Novák, Břetislav. On certain sum in number theory. Commentationes Mathematicae Universitatis Carolinae, Tome 12 (1971) no. 4, pp. 669-685. http://geodesic.mathdoc.fr/item/CMUC_1971__12_4_a3/