TY - JOUR PB - American Physical Society ID - 10.1103/PhysRevFocus.17.7 TI - Spiked Ice JF - Physical Review Focus JA - Phys. Rev. Focus J1 - FOCUS VL - 17 IS - SP - 7 EP - PY - 2006/02/24/ UR - http://link.aps.org/doi/10.1103/PhysRevFocus.17.7 A1 - Putney, Margaret ER -