1. Conditions for nonlinear stability of stationary plane curvilinear flows on an ideal fluid;Arnold;Dokl. Akad. Nauk SSSR,1965
2. Periodic orbits in the case of zero eigenvalue;Birtea;C. R. Acad. Sci., Paris,2007
3. From chaos to order–Perspectives and methodologies in controlling chaotic nonlinear dynamic systems;Chen;Int. J. Bifurcation Chaos,1993
4. From Chaos to Order: Methodologies, Perspectives and Applications;Chen,1998
5. Global Aspects of Classical Integrable Systems;Cushman,1997