TY - JOUR PB - American Physical Society ID - 10.1103/Physics.5.105 TI - The Longevity of Rankings JF - Physics JA - Physics J1 - PHYSICS VL - 5 IS - SP - 105 EP - PY - 2012/09/17/ UR - http://link.aps.org/doi/10.1103/Physics.5.105 A1 - Caldarelli, Guido ER -