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Ground-state properties of a supersolid in RPA
Stoffel, A. J., (2009)
Quantum phase transitions in the bosonic single-impurity Anderson model
Lee, H.-J., (2007)
Quantum corrections to the energy density of a homogeneous Bose gas
Braaten, E., (1999)
Superfluidity of a perfect quantum crystal II
Golovko, V. A., (2010)