1. Local Semi-Dynamical Systems;Bhatia,1969
2. Extended dynamical systems and stability theory;Hale,1967
3. Dynamical Systems in the Plane;Hajek,1968
4. Structure of Dynamical Systems;Hajek;Comment. Math. Univ. Carolin˦ Progensis,1965
5. Representation of dynamical systems;Hajek;Funkcial. Ekvac.,1971