TY - JOUR PB - American Physical Society ID - 10.1103/Physics.3.25 TI - The nanostructure problem JF - Physics JA - Physics J1 - PHYSICS VL - 3 IS - SP - 25 EP - PY - 2010/03/22/ UR - http://link.aps.org/doi/10.1103/Physics.3.25 A1 - Billinge, Simon J. L. ER -