Citation:
Basri G, Walkowicz LM, Batalha N, Gilliland RL, Jenkins J, Borucki WJ, Koch D, Caldwell D, Dupree AK, Latham DW, et al. Photometric Variability in Kepler Target Stars. II. An Overview of Amplitude, Periodicity, and Rotation in First Quarter Data. \aj. 2011;141 (1) :20.