Douglas C. Heggie, “Bifurcation at complex instability”, Celestial Mechanics, 35, № 4, 1985, 357
Simos Ichtiaroglou, The Dynamical Behaviour of our Planetary System, 1997, 21
Richard H. Cushman, 1, Dynamics Reported, 1992, 54
David Bernstein, Anatole Katok, “Birkhoff periodic orbits for small perturbations of completely integrable Hamiltonian systems with convex Hamiltonians”, Invent Math, 88, № 2, 1987, 225
M V Karasev, V E Nazaĭkinskiĭ, “ON THE QUANTIZATION OF RAPIDLY OSCILLATING SYMBOLS”, Math. USSR Sb., 34, № 6, 1978, 737
P. J. Morrison, S. Eliezer, “Spontaneous symmetry breaking and neutral stability in the noncanonical Hamiltonian formalism”, Phys. Rev. A, 33, № 6, 1986, 4205
EMILIANO DE SIMONE, “A RENORMALIZATION PROOF OF THE KAM THEOREM FOR NON-ANALYTIC PERTURBATIONS”, Rev. Math. Phys., 19, № 06, 2007, 639
Manuel de León, David Martín de Diego, Aitor Santamaría-Merino, “Discrete variational integrators and optimal control theory”, Adv Comput Math, 26, № 1-3, 2007, 251
Chong Sup Yoon, F.M.A. Salam, Proceedings of the 27th IEEE Conference on Decision and Control, 1988, 155
Christopher M. Hirata, “Lindblad resonance torques in relativistic discs - II. Computation of resonance strengths”, Monthly Notices of the Royal Astronomical Society, 414, № 4, 2011, 3212