@article{6231, author = {Bradley Hindman and R. Jain and Ellen Zweibel}, title = {The Surface Amplitudes and Frequencies of p -Mode Oscillations in Active Regions}, year = {1997}, journal = {The Astrophysical Journal}, volume = {476}, pages = {392-402}, month = {Oct-02-1997}, issn = {0004-637X}, doi = {10.1086/303615}, }