%0 Journal Article %A I. V. Gaishun %T The group of linear Hamiltonian systems in total differentials and strong stability of its stationary and periodic elements %J Differencialʹnye uravneniâ %D 2006 %P 731-740 %V 42 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2006_42_6_a1/ %G ru %F DE_2006_42_6_a1