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@article{DAN_1989_304_2_a8, author = {B. T. Polyak and A. B. Tsybakov}, title = {Optimal projection estimates for a regression function of unknown}, journal = {Doklady Akademii Nauk}, pages = {297--301}, publisher = {mathdoc}, volume = {304}, number = {2}, year = {1989}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1989_304_2_a8/} }
B. T. Polyak; A. B. Tsybakov. Optimal projection estimates for a regression function of unknown. Doklady Akademii Nauk, Tome 304 (1989) no. 2, pp. 297-301. http://geodesic.mathdoc.fr/item/DAN_1989_304_2_a8/