TY - JOUR PB - American Physical Society ID - 10.1103/PhysRevFocus.14.20 TI - When Membranes Collide JF - Physical Review Focus JA - Phys. Rev. Focus J1 - FOCUS VL - 14 IS - SP - 20 EP - PY - 2004/11/16/ UR - http://link.aps.org/doi/10.1103/PhysRevFocus.14.20 A1 - Wald, Chelsea ER -