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@article{TRSPY_1987_180_a39, author = {S. B. Vakarchuk}, title = {On approximation of functions of two variables by generalized polynomials}, journal = {Informatics and Automation}, pages = {77--78}, publisher = {mathdoc}, volume = {180}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a39/} }
S. B. Vakarchuk. On approximation of functions of two variables by generalized polynomials. Informatics and Automation, Theory of functions and related questions of analysis, Tome 180 (1987), pp. 77-78. http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a39/