TY - JOUR PB - American Physical Society ID - 10.1103/PhysRevFocus.25.4 TI - Why Leaves Aren’t Trees JF - Physical Review Focus JA - Phys. Rev. Focus J1 - FOCUS VL - 25 IS - SP - 4 EP - PY - 2010/02/04/ UR - http://link.aps.org/doi/10.1103/PhysRevFocus.25.4 A1 - Monroe, Don ER -