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@article{TRSPY_1985_172_a20, author = {M. K. Potapov and V. M. Fedorov}, title = {On {Jackson} theorems for the generalized modulus of smoothness}, journal = {Informatics and Automation}, pages = {291--298}, publisher = {mathdoc}, volume = {172}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1985_172_a20/} }
M. K. Potapov; V. M. Fedorov. On Jackson theorems for the generalized modulus of smoothness. Informatics and Automation, Investigations on the theory of functions of several real variables and approximation of functons, Tome 172 (1985), pp. 291-298. http://geodesic.mathdoc.fr/item/TRSPY_1985_172_a20/