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@article{TRSPY_1987_180_a44, author = {Yu. I. Volkov}, title = {On approximation in the mean by multidimensional positive linear operators}, journal = {Informatics and Automation}, pages = {85--86}, publisher = {mathdoc}, volume = {180}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a44/} }
Yu. I. Volkov. On approximation in the mean by multidimensional positive linear operators. Informatics and Automation, Theory of functions and related questions of analysis, Tome 180 (1987), pp. 85-86. http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a44/