%0 Journal Article
%A Apolaya, Ricardo Fuentes
%T Exact controllability for temporally wave equation.
%J Portugaliae mathematica
%D 1994
%P 475-488
%V 51
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1994__51_4_47318/
%G en
%F PORMA_1994__51_4_47318