TY - RPRT TI - Kepler Observations of Rapid Optical Variability in Active Galactic Nuclei AU - Mushotzky, R. F. AU - Edelson, R. AU - Baumgartner, W. H. AU - Gandhi, P. PY - 2012 UR - https://ntrs.nasa.gov/citations/20120013038 ID - 20120013038 ER -