Sound propagation in co-existent Bose and Fermi superfluids in aerogel

G. Lawes, A. I. Golov, E. Nazaretski, N. Mulders, and J. M. Parpia

Phys. Rev. Lett., 90 195301 (2003). DOI: 10.1103/PhysRevLett.90.195301

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