Boccato, C., Brennecke, C., Cenatiempo, S., &; Schlein, B. (2019). Bogoliubov theory in the Gross–Pitaevskii limit. Acta Mathematica. International Press of Boston.https://doi.org/10.4310/acta.2019.v222.n2.a1 

Bernard, P., Kaloshin, V., &; Zhang, K. (2016). Arnold diffusion in arbitrary degrees of freedom and normally hyperbolic invariant cylinders. Acta Mathematica. Institut Mittag-Leffler.https://doi.org/10.1007/s11511-016-0141-5