@article{7476, author = {Ludwig Oster and K. Schatten and S. Sofia}, title = {Solar irradiance variations due to active regions}, year = {1982}, journal = {The Astrophysical Journal}, volume = {256}, pages = {768}, month = {Jan-05-1982}, issn = {0004-637X}, url = {http://adsabs.harvard.edu/full/1982ApJ...256..768O}, doi = {10.1086/159949}, }