TY - JOUR PB - American Physical Society ID - 10.1103/PhysRevFocus.21.12 TI - Self-forming Rings and Cages JF - Physical Review Focus JA - Phys. Rev. Focus J1 - FOCUS VL - 21 IS - SP - 12 EP - PY - 2008/04/07/ UR - http://link.aps.org/doi/10.1103/PhysRevFocus.21.12 A1 - Schirber, Michael ER -