TY - JOUR PB - American Physical Society ID - 10.1103/Physics.1.16 TI - How could a solid be superfluid? JF - Physics JA - Physics J1 - PHYSICS VL - 1 IS - SP - 16 EP - PY - 2008/08/25/ UR - http://link.aps.org/doi/10.1103/Physics.1.16 A1 - Balibar, Sébastien ER -