TY - JOUR PB - American Physical Society ID - 10.1103/Physics.2.19 TI - An astronomical solution to an old quantum problem JF - Physics JA - Physics J1 - PHYSICS VL - 2 IS - SP - 19 EP - PY - 2009/03/09/ UR - http://link.aps.org/doi/10.1103/Physics.2.19 A1 - Stroud, C. R., Jr. ER -