[1] Jaroslav Barták: 
Stability and Correctness of Abstract Differential Equations in Hubert Spaces. Czechoslovak Mathematical Journal, 28 (103), 1978, pp. 548-593. 
MR 0499545[2] Jaroslav Barták: 
Stability of Abstract Differential Equations with the Right-hand Side Smooth in the Time Variable. Czechoslovak Mathematical Journal, 31 (106), 1981, pp. 171 - 193. 
MR 0611073[3] Jaroslav Barták: 
Stability of Abstract Differential Equations at Constantly Acting Disturbances. to appear in Beiträge zur Analysis. 
MR 0796564