author        = "Bailer-Jones, C. A. L. and Andrae, R. and Arcay, B. and
                       Astraatmadja, T. and Bellas-Velidis, I. and Berihuete, A.
                       and Bijaoui, A. and Carrión, C. and Dafonte, C. and
                       Damerdji, Y. and Dapergolas, A. and de Laverny, P. and
                       Delchambre, L. and Drazinos, P. and Drimmel, R. and
                       Frémat, Y. and Fustes, D. and García-Torres, M. and
                       Guédé, C. and Heiter, U. and Janotto, A.-M. and
                       Karampelas, A. and Kim, D.-W. and Knude, J. and Kolka, I.
                       and Kontizas, E. and Kontizas, M. and Korn, A. J. and
                       Lanzafame, A. C. and Lebreton, Y. and Lindstrøm, H. and
                       Liu, C. and Livanou, E. and Lobel, A. and Manteiga, M. and
                       Martayan, C. and Ordenovic, C. and Pichon, B. and
                       Recio-Blanco, A. and Rocca-Volmerange, B. and Sarro, L. M.
                       and Smith, K. and Sordo, R. and Soubiran, C. and Surdej, J.
                       and Thévenin, F. and Tsalmantza, P. and Vallenari, A. and
                       Zorec, J.",
      title         = "{The Gaia astrophysical parameters inference system
                       (Apsis). Pre-launch description}",
      year          = "2013",