Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1961_137_2_a10, author = {B. S. Stechkin and S. B. Stechkin}, title = {Quadratic mean and arithmetic mean}, journal = {Doklady Akademii Nauk}, pages = {287--290}, publisher = {mathdoc}, volume = {137}, number = {2}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_137_2_a10/} }
B. S. Stechkin; S. B. Stechkin. Quadratic mean and arithmetic mean. Doklady Akademii Nauk, Tome 137 (1961) no. 2, pp. 287-290. http://geodesic.mathdoc.fr/item/DAN_1961_137_2_a10/