1. Dynamical Systems I;Anosov,1988
2. Geometric Methods in Theory of Ordinary Differential Equations;Arnold,1988
3. C∞-normal forms of local vector fields. Symmetry and perturbation theory;Belitskii;Acta Appl. Math.,2002
4. Normal form for germs of C∞-mappings;Belitskii;Ukrain. Mat. Zh.,1980
5. Equivariant Sternberg–Chen theorem;Belitskii;J. Dynam. Differential Equations,2002