1. Sensitivity of automatic control systems (survey);Kokotovic;Aut. Remote Control,1965
2. Sensitivity of automatic control systems (review);Ngo;Aut. Remote Control,1971
3. Sensitivity in optimal control systems;Sobral,1968
4. Systemes grossiers;Andronov;Comptes Rendus (Doklady) de l'Academie des Sciences de l'URSS,1937