%0 Journal Article %A P. A. Kuchment %T Singularities of the boundary of the stability region in the infinite-dimensional case %J Funkcionalʹnyj analiz i ego priloženiâ %D 1988 %P 75-76 %V 22 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1988_22_3_a9/ %G ru %F FAA_1988_22_3_a9