%0 Journal Article
%A E. Casas
%A F. Tröltzsch
%A A. Unger
%T Second order sufficient optimality conditions for a class of elliptic control problems
%J ESAIM. Proceedings
%D 1998
%P 285-300
%V 4
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.1051/proc:1998034/
%R 10.1051/proc:1998034
%G en
%F EP_1998_4_a17