%0 Journal Article
%A C. Xu
%T A priori error estimates and superconvergence of $P_0^2-P_1$ mixed finite element methods for elliptic boundary control problems
%J Sibirskij žurnal vyčislitelʹnoj matematiki
%D 2021
%P 63-76
%V 24
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SJVM_2021_24_1_a5/
%G ru
%F SJVM_2021_24_1_a5