1. Barrabés, E., Ollé, M., Borondo, F., Farrelly, D., and Mondelo, J.M., Phase Space Structure of the Hydrogen Atom in a Circularly Polarized Microwave Field, Phys. D, 2012, no. 4, vol. 241, pp. 333–349.
2. Batut, C., Belabas, K., Bernardi, D., Cohen, H., and Olivier, M., Users’ guide to PARI/GP,
https://doi.org/pari.math.u-bordeaux.fr/(2018)
.
3. Delshams, A., Gelfreich, V., Jorba, `A., and Seara, T. M., Exponentially Small Splitting of Separatrices under Fast Quasiperiodic Forcing, Comm. Math. Phys., 1997, vol. 189, no. 1, pp. 35–71.
4. Delshams, A., Gonchenko, M., and Gutiérrez, P., Exponentially Small Lower Bounds for the Splitting of Separatrices to Whiskered Tori with Frequencies of Constant Type, Internat. J. Bifur. Chaos Appl. Sci. Engrg., 2014, vol. 24, no. 8, 1440011, 12 pp.
5. Delshams, A., Gonchenko, M., and Gutiérrez, P., Continuation of the Exponentially Small Transversality for the Splitting of Separatrices to a Whiskered Torus with Silver Ratio, Regul. Chaotic Dyn., 2014, vol. 19, no. 6, pp. 663–680.