1. Stability of linearized systems;Neimark,1949
2. Asymptotic stability of an equilibrium position of a family of systems of linear differential equations;Kharitonov;Differential Equations,1979
3. On a generalization of a stability criterion;Kharitonov;Izvestiya Akademii Nauk Kazakhskoi, SSR Seriya Fizika Matematika,1978
4. Robustness of a discrete system;Jury;Automatikha i Telemechanika,1990