Constraining the Age-Activity Relation for Cool Stars: the Sloan Digital Sky Survey Data Release 5 Low-Mass Star Spectroscopic Samplev. 135785–795
West, Andrew A., Hawley, Suzanne L., Bochanski, John J., Covey, Kevin R., Reid, I. Neill, Dhital, Saurav, Hilton, Eric J., and Masuda, Michael. 2008. "Constraining the Age-Activity Relation for Cool Stars: the Sloan Digital Sky Survey Data Release 5 Low-Mass Star Spectroscopic Sample." The Astronomical Journal, 135 785–795.