TY - JOUR PB - American Physical Society ID - 10.1103/PhysRevFocus.24.8 TI - One-way Mirror for Sound Waves JF - Physical Review Focus JA - Phys. Rev. Focus J1 - FOCUS VL - 24 IS - SP - 8 EP - PY - 2009/08/25/ UR - http://link.aps.org/doi/10.1103/PhysRevFocus.24.8 A1 - Monroe, Don ER -