TY - JOUR PB - American Physical Society ID - 10.1103/Physics.1.25 TI - Getting a handle on difficult atoms JF - Physics JA - Physics J1 - PHYSICS VL - 1 IS - SP - 25 EP - PY - 2008/09/29/ UR - http://link.aps.org/doi/10.1103/Physics.1.25 A1 - Bethlem, Hendrick L. ER -