%0 Journal Article %A A. A. Zamyshlyaeva %T The phase space of a high order Sobolev type equation %J The Bulletin of Irkutsk State University. Series Mathematics %D 2011 %P 45-57 %V 4 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/IIGUM_2011_4_4_a4/ %G ru %F IIGUM_2011_4_4_a4