@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/}
}