%0 Journal Article
%A G. N. Petrovskiǐ
%T A property of matrix exponentials
%J Differencialʹnye uravneniâ
%D 1977
%P 954-955
%V 13
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1977_13_5_a20/
%G ru
%F DE_1977_13_5_a20