1. Proof of A. N. Kolmogorov’s theorem on the conservation of conditionally periodic motions with a small variation in the Hamiltonian;Arnold;Russian Math. Surveys,1963
2. Branching of Cantor manifolds of elliptic tori and applications to PDEs;Berti;Comm. Math. Phys.,2011
3. Methods of Accelerated Convergence in Nonlinear Mechanics;Bogoljubov,1976
4. A Quantitative KAM Theorem;Castan,2017
5. V. I. Arnold’s “pointwise” KAM theorem;Chierchia;Regul. Chaotic Dyn.,2019