%0 Journal Article %A K. I. Oskolkov %T Ridge Approximation, Chebyshev--Fourier Analysis and Optimal Quadrature Formulas %J Informatics and Automation %D 1997 %P 269-285 %V 219 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1997_219_a18/ %G ru %F TRSPY_1997_219_a18