Voir la notice de l'article provenant de la source Math-Net.Ru
@article{TRSPY_1972_117_a10, author = {L. D. Kudryavtsev}, title = {Polynomial traces and moduli of smoothness of functions of several variables}, journal = {Informatics and Automation}, pages = {180--211}, publisher = {mathdoc}, volume = {117}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1972_117_a10/} }
L. D. Kudryavtsev. Polynomial traces and moduli of smoothness of functions of several variables. Informatics and Automation, Investigations in the theory of differentiable functions of many variables and its applications. Part IV, Tome 117 (1972), pp. 180-211. http://geodesic.mathdoc.fr/item/TRSPY_1972_117_a10/