TY - JOUR PB - American Physical Society ID - 10.1103/PhysRevFocus.28.4 TI - Landmarks: Ghostly Influence of Distant Magnetic Field JF - Physical Review Focus JA - Phys. Rev. Focus J1 - FOCUS VL - 28 IS - SP - 4 EP - PY - 2011/07/22/ UR - http://link.aps.org/doi/10.1103/PhysRevFocus.28.4 A1 - Lindley, David ER -