KRASNOV, V. O. Fermion Spectrum of Bose–Fermi–Hubbard Model in the Phase with Bose–Einstein Condensate. Ukrainian Journal of Physics, [S. l.], v. 60, n. 5, p. 443, 2019. DOI: 10.15407/ujpe60.05.0443. Disponível em: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019236. Acesso em: 21 oct. 2021.