%0 Journal Article
%A N. L. Zmatrakov
%T Approximate properties of two-dimensional splines of the third and fourth degree
%J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki
%D 1993
%P 12-21
%V 33
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZVMMF_1993_33_1_a1/
%G ru
%F ZVMMF_1993_33_1_a1