author        = "Brockmann, E.   and Lutz, S.   and Zurutuza, J.  and
                       Caporali, A.  and Lidberg, M.  and Völksen, C.  and
                       Sánchez, L.  and Serpelloni,  E.   and Bitharis, S.I.  and
                       Pikridas, C.  and Fotiou, A.   and Mathis, E.  and Sánchez
                       Sobrino, J.A.  and Valdés Péres De Vargas,  M. and
                       Vernant,  P.  and Baron, A.   and Weserhaus, M.  and
                       Legrand, J.  and Kreemer, C. and Gianniou, M.  and Nykiel1,
                       G.  and Figurski, M.  and Kenyeres, A. ",
      title         = "{Towards a European Dense Velocities Field as a basis for
                       Maintaining the European Reference Frame}",
      month         = "May",
      year          = "2019",