1. The large quasar reference frame (LQRF)
2. Andrei, A. H., Anton, S., Barache, C., et al. 2012, in SF2A-2012: Proc. Annual Meeting of the French Society of Astronomy and Astrophysics, eds. S. Boissier, P. de Laverny, N. Nardetto, et al., 61
3. Finding rare objects and building pure samples: probabilistic quasar classification from low-resolution Gaia spectra
4. Bastian, U. 1995, in Future Possibilities for Astrometry in Space, eds. M. A. C. Perryman, & F. van Leeuwen, ESA SP, 379, 99
5. Astrometric microlensing with theGAIAsatellite