1. Boccato, C., Brennecke, C., Cenatiempo, S., Schlein, B.: The excitation spectrum of Bose gases interacting through singular potentials. To appear in JEMS
2. Boccato, C., Brennecke, C., Cenatiempo, S., Schlein, B.: Bogoliubov theory in the Gross–Pitaevskii limit. Acta Math. 222, 219–335 (2019)
3. Boccato, C., Brennecke, C., Cenatiempo, S., Schlein, B.: Complete Bose–Einstein condensation in the Gross–Pitaevskii regime. Commun. Math. Phys. 359, 975–1026 (2018)
4. Boccato, C., Brennecke, C., Cenatiempo, S., Schlein, B.: Optimal rate for Bose–Einstein condensation in the Gross–Pitaevskii regime. Commun. Math. Phys. (2019). https://doi.org/10.1007/s00220-019-03555-9
5. Bogolyubov, N.N.: On the theory of superfluidity. Proc. Inst. Math. Kiev 9, 89–103 (1947). Eng. Trans. J. Phys. (USSR) 11, 23 (1947). Rus. Trans. Izv. Akad. Nauk USSR 11, 77–90 (1947). See also Lectures on quantum statistics, Gordon and Breach (1968)