%0 Journal Article
%A Yu. N. Subbotin
%T Approximations by polynomial and trigonometric splines of third order preserving some properties of approximated functions
%J Trudy Instituta matematiki i mehaniki
%D 2007
%P 156-166
%V 13
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TIMM_2007_13_2_a14/
%G ru
%F TIMM_2007_13_2_a14