Colors and kinematics of L dwarfs from the Sloan Digital Sky Survey
Meeting the Cool Neighbors. V. A 2MASS-Selected Sample of Ultracool Dwarfs
Constraining the age-activity relation for cool stars: the Sloan Digital Sky Survey Data Release 5 low-mass star spectroscopic sample
VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
The Fifth Data Release of the Sloan Digital Sky Survey