%0 Journal Article
%A Wintner, Aurel
%T On an instability criterion of Liapounoff
%J Portugaliae mathematica
%D 1956
%P 13-18
%V 15
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1956__15_1_114763/
%G en
%F PORMA_1956__15_1_114763