%0 Journal Article %A Yu. Brudnyi %A Inna Kozlov %T An algorithm of nonlinear approximation by piecewise polynomials %J Žurnal matematičeskoj fiziki, analiza, geometrii %D 2002 %P 311-325 %V 9 %N 3 %U http://geodesic.mathdoc.fr/item/JMAG_2002_9_3_a0/ %G en %F JMAG_2002_9_3_a0