%0 Journal Article
%A I. F. Sivergina
%T Invertibility and observability of evolution systems
%J Doklady Akademii Nauk
%D 1996
%P 304-308
%V 351
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1996_351_3_a4/
%G ru
%F DAN_1996_351_3_a4