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@article{TM_1987_180_a6, author = {V. V. Andrievskii}, title = {On the approximation of functions by harmonic polynomials}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {28--29}, publisher = {mathdoc}, volume = {180}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TM_1987_180_a6/} }
V. V. Andrievskii. On the approximation of functions by harmonic polynomials. Trudy Matematicheskogo Instituta imeni V.A. Steklova, Theory of functions and related questions of analysis, Tome 180 (1987), pp. 28-29. http://geodesic.mathdoc.fr/item/TM_1987_180_a6/