%0 Journal Article %A E. D. Livshits %T Stability of the operator of $\varepsilon$-projection to the set of splines in~$C[0,1]$ %J Izvestiya. Mathematics %D 2003 %P 91-119 %V 67 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_2003_67_1_a5/ %G en %F IM2_2003_67_1_a5