Dark dust and single-cloud sightlines in the ISM
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
The VLT-FLAMES survey of massive stars: evolution of surface N abundances and effective temperature scales in the Galaxy and Magellanic Clouds
The VLT-FLAMES survey of massive stars: constraints on stellar evolution from the chemical compositions of rapidly rotating Galactic and Magellanic cloud B-type stars