%0 Journal Article
%A N. V. Baidakova
%T Upper estimates for the error of approximation of derivatives in a~finite element of Hsieh--Clough--Tocher type
%J Trudy Instituta matematiki i mehaniki
%D 2012
%P 80-89
%V 18
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TIMM_2012_18_4_a6/
%G ru
%F TIMM_2012_18_4_a6