The Perkins catalog of revised MK types for the cooler stars
The Tycho-2 catalogue of the 2.5 million brightest stars
VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
Lithium in red giant stars: Constraining non-standard mixing with large surveys in the Gaia era
Validation of the new Hipparcos reduction
High-resolution spectroscopic survey of 671 GK giants. I - Stellar atmosphere parameters and abundances