Voir la notice de l'article provenant de la source Math-Net.Ru
@article{TRSPY_1987_180_a49, author = {L. D. Gogoladze}, title = {On the approximation of functions of several variables by linear means}, journal = {Informatics and Automation}, pages = {92--93}, publisher = {mathdoc}, volume = {180}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a49/} }
L. D. Gogoladze. On the approximation of functions of several variables by linear means. Informatics and Automation, Theory of functions and related questions of analysis, Tome 180 (1987), pp. 92-93. http://geodesic.mathdoc.fr/item/TRSPY_1987_180_a49/