2) Second sound and the superfluid fraction in a Fermi gas with resonant interactions in NATUREBy: Sidorenkov L.A., Tey M.K., Grimm R., Hou Y.H., Pitaevskii L., Stringari S. Year: 2013 (Cit.: 148 DOI: 10.1038/nature12136)
3) Collective Modes in a Unitary Fermi Gas across the Superfluid Phase Transition in PHYSICAL REVIEW LETTERSBy: Tey M.K., Sidorenkov L.A., Sánchez Guajardo E.R., Grimm R., Ku M.J.H., Zwierlein M.W., Hou Y.-H., Pitaevskii L.P., Stringari S. Year: 2013 (Cit.: 53 DOI: 10.1103/PhysRevLett.110.055303)
4) First and second sound in a highly elongated Fermi gas at unitarity in PHYSICAL REVIEW ABy: Hou Y.H., Pitaevskii L.P., Stringari S. Year: 2013 (Cit.: 22 DOI: 10.1103/PhysRevA.88.043630)
5) Scaling solutions of the two-fluid hydrodynamic equations in a harmonically trapped gas at unitarity in PHYSICAL REVIEW ABy: Hou Y.H., Pitaevskii L.P., Stringari S. Year: 2013 (Cit.: 19 DOI: 10.1103/PhysRevA.87.033620)