%0 Journal Article %A Barták, Jaroslav %T Lyapunov stability and stability at constantly acting disturbances of an abstract differential equation of the second order %J Czechoslovak Mathematical Journal %D 1976 %P 411-437 %V 26 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1976.101416/ %R 10.21136/CMJ.1976.101416 %G en %F 10_21136_CMJ_1976_101416