TY - JOUR PB - American Physical Society ID - 10.1103/Physics.3.51 TI - Supersolidity or quantum plasticity? JF - Physics JA - Physics J1 - PHYSICS VL - 3 IS - SP - 51 EP - PY - 2010/06/21/ UR - http://link.aps.org/doi/10.1103/Physics.3.51 A1 - Beamish, John ER -