TY - JOUR AU - Bradley Hindman AU - T. Brown BT - The Astrophysical Journal PY - 1998 EP - 1029 T2 - The Astrophysical Journal TI - Acoustic power maps of solar active regions UR - http://iopscience.iop.org/0004-637X/504/2/1029/fulltext/38217.text.html VL - 504 ER -